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Monster Musume no Iru Nichijou Species 1 Everyday Life with a Lamia141

Since the release of the Cultural Exchange Between Species Bill, many previously thought mythological human, humanoid, demihuman and pseudohuman races have been revealed to the general public. The official name used in the manga series franchise is Liminal or Liminal species.

Protected from human persecution by law, many of these races have actually been interacting with human society for centuries albeit in secret, while others had long ago withdrawn from public knowledge due to humanity's racial prejudices.

The following is a list of these liminal races as they appear in Monster Musume: Everyday Life with Monster Girls. For species that appear in the Monster Musume: Everyday Life with Monster Girls Online game, see: Monster Musume Online Species List. For species that appear in the Monster Musume Fantastic Life game, see: Monster Musume Fantastic Life Species List.


  1. Human Race
  2. Liminal Races
  3. Elite Liminals
  4. Gallery
  5. Trivia
  6. See Also

Human Race[]

Main article: Human

Humans (人間, Ningen), scientific name Homo Sapiens, are the most populous race on the planet largely thanks to their ability to adapt themselves to their environment.

Aggressively territorial, while possessing no natural means of offense or defence (claws, armour) that other races may possess, the race's ability to create and adapt objects to serve specific functions, and their tendency to form and live/work in groups, has enabled them to dominate the majority of the planet and force other races to withdraw into their own enclosed populations away from human attention.

Liminal Races[]

As this article is written by humans, for humans, for ease of identification when classifying liminal races, they are classified in relation to how similar their appearance is to the average human body structure.

  • Humanoid: Monsters that appear human but for one or two distinguishing traits. (See M.O.N. or ANM48)
  • Demihuman: Monsters with a half-human appearance at most.
  • Pseudohuman: Monsters that, while bipedal and having some humanoid features, their overall appearance is completely nonhuman. (See O.C.R.L.)

Alraune - Angel - Arachne - Backbeard - Baku - Barometz - Black Slime - Bullywug - Butterfly Fairy - Centaur - Cyclops - Dairy Breed Centaur - Doppelganger - Dragonewt - Dragonfly Fairy - Dryad - Dullahan - Dwarf - Early Zombie - Echidna - Eel Mermaid - Elder Devil - Elf - Fairy - Fishfolk - Flesh-Golem - Frankenstein's Monster - Fresh Water Mermaid - Ghost - Gigantes - Greater Devil - Green Slime - Grim Reaper - Grimoire - Halfling - Harpy - Heavyweight Centaur - Holstaurus - Honey Bee - Jackalope - Jiang Shi/Chinese Hopping Zombie - Killer Bee - Kobold - Kraken - Kyuubi no Kitsune - Lamia - Lamprey Mermaid - Land Animal Harpy - Large Arachne Breeds - Leech - Lemur - Lesser Devil - Lightweight Centaur - Living Painting - Lizardfolk - Long Leg Arachne Breeds - Mandragora - Mantis - Matango - Medusa - Melusine - Mermaid - Minotaur - Mole Men - Monoeye - Mosquito - Mothmen - Mummy - Nekomimi - Nezumimi - Nightmare - Ogre - One-eyed Monk - Oni - Ōkamimimi - Orc - Orthrus - Owl Harpy - Pan - Paper Dancer - Pegasus - Pink Slime - Poultry Harpy - Raptor Harpy - Red Slime - Rock Lizard - Ryu-jin - Salamander - Satyr - Scorpion - Scylla - Shapeshifter - Shark Mermaid - Silverfish - Slime - Small Arachne Breeds - Sphinx - Succubus - Tengu - Tetra Arms - Treefolk - Triclops - Troll - Undine - Unicorn - Usagimimi - Vampire - Werecat - Werefox - Wererabbit - Werewolf - White Tiger - Wyvern - Yeti - Yuki-onna - Zombie


Main article: Dryad
MonMusu - Alraune 2

Alraune (アルラウネ, Aruraune) are a pseudohuman sub-species of Dryads with flower-like qualities. Like other plant-like species, they are timid and prefer to not move around a lot, but as they use cross-pollination rather than self-pollination to procreate, they do require interaction with other species (primarily humans) and as such are noted for being more friendly toward other species than other plant-like beings.

Noted for being carnivorous (both literally and sexually), the species is known for sharing a symbiotic relationship with Papillions where, as the Alraune lures prey in with their sweet smelling nectar (which also doubles as an aphrodisiac), the Papillion would paralyze the prey with their scales, whereupon they would both feed upon the helpless prey.

The humanoid body of the Alraune is referred to as their "pistil" (the reproductive bodypart of the flower). Over time the Alraune pistil evolved beyond the typical pistil seen in most flowers to possess the appearance of an attractive humanoid female so that it could act as an attractive lure for a more diverse range of pollination partners.

Aluru and Reshia are Alraunes.


Angels are a humanoid liminal species that are physically identical to humans in nearly every way but for possessing a pair of distinguishing feathered wings that grants them the ability to fly and elfin ears.

While little is known about the actual Angel race, in mythology they are known as ethereal creatures who assist and serve the motives of various deities or gods. Usually acting as a go-between for human/god interactions, they appear prominently in Christianity, Judaism, Zoroastrianism and Islam religions.


Main article: Arachne

Arachne are a demihuman race with the upper body of a human and the lower body of a spider. The spider half is armored with hard but light exoskeleton, and their abdomen also has spinnerets and a book lung. As their size is too great to be supported by book lung respiration, they likely have a pair of standard lungs somewhere else in their bodies. Arachne possess sharp claws of the same exoskeleton material, as a means of attack as well as tools for the handling of the webbing, as they are quite dexterous.

Arachne differ individually in terms of color and number of eyes. In addition, each Arachne has a unique pattern on its abdomen. Their silk is some five times stonger than steel and twice as elastic as nylon. Also, they are more akin to arachnids than mammals, and can be intoxicated by caffeine.

They are a purely female species and therefore need a Human male to reproduce. For this reason, in the past they have often kidnapped Humans into their family nests, but since the Cultural Exchange Between Species Bill came into existence, these practices had to be abandoned. Since many Humans are afraid of spiders, the introduction of the Arachne in the Exchange Bill has proven to be rather problematic, although there are also many Humans who have treated Arachne with kindness.

Rachnera Arachnera is an Arachne. One of The Eight Brothers is also dating an Arachne girl.


Main article: Monoeye
MonMusu Backbeard

Backbeard is a subspecies of Monoeye that possesses powerful eye abilities. Their abilities allow them to hypnotize anyone who looks into their eye, blind others with their glittering eye, or even shoot laser beams from their eye. In contrast to this great power, their bodies are small and childlike, and they are often treated like children, much to their dismay. Because of this, they are very suspicious, and when anyone shows them the slightest kindness, they shout, "You damn lolicon!" and run the other way.[1]


Main article: Yokai

Bakus are a demihuman liminal species that inhabit the jungle and forest regions of Japan. They are thought to eat people's nightmares in Chinese and Japanese folklore and as such they are revered as powerful forces of good and holy protectors of mankind; with "evil spirits" and Yokai fearing and fleeing from their presence.

Bahkurin is a Baku.


Main article: Dryad

Barometz are a psuedohuman race possessing characteristics of a sheep or goat. With legends surrounding the race stemming from Central Asia; where they are said to be birthed by an as-yet-unknown plant, while possessing numerous similarities with the Pan, Barometz are actually plant-like beings like the Dryad, Mandragora and Alraune.

Like the wool on a Pan, Barometz possess a coat of cotton that requires occasional shearing.

The name of this species is a reference to the Vegetable Lamb of Tartary, with said plant having a "scientific name" (the name actually predate the modern usage of scientific names) of "Planta Tartarica Barometz"

Ton and Cott are Barometz.

Black Slime[]

MonMusu Black Slime
Main article: Slime

Black Slimes are a pseudohuman subspecies of Slime that have turned black because their homes are polluted by toxic waste. It is impossible to determine their original color. Though they often make dark and satirical comments on society, they are not careful with their word choices and don't generally understand what they are saying. They are extremely violent and hostile to humans.

Like all Slimes, they were considered simple-natured beasts until recently, and have no known developed culture of their own.

Nega-Suu is a Black Slime.


Main article: Lizardfolk

Bullywugs are a pseudohuman species that possess frog-like attributes such as flippers and long, prehensile tongues. The mucus they excrete is an extremely effective moisturizer and prized in beauty products.

As amphibious beings, Bullywugs inhabit wet places such as rainforests, marshes, damp caves or any other environment that is shady/dark and has water nearby. Forming mobile tribal societies that value power through strength, Bullywugs are thought to be fiercely territorial and will aggressively attack any outsiders that approach.

Anura is a Bullywug. 

Butterfly Fairy[]

Main article: Fairy
Fairy from Chapter 49

The Butterfly Fairy is a fairy subspecies that has the form of a miniature humanoid with a pair of butterfly wings that allow for flight. Known to be sweet and innocent, fun-loving and carefree in deposition, they are thought to spend their time tending to gardens and encouraging floral growth in various cultures.


Main article: Centaur

Centaurs are a demihuman race with the upper body of a human and the lower body of a horse.

Appearing predominantly in Greek mythology, centaurs are herbivorous and are unable to intake meat or eggs. Known as a traditionally militaristic race, centaurs are known for their power, with their equine portion being strong enough to not only easily support a human, but also capable of donning several pounds of heavy armor without exhibiting signs of stress.

Centaur culture and history go back farther than most other races' and appear to be spread over a large portion of Eurasia. The race has a tendency to don armaments akin to those of European knights and follow a similar code of honor somewhat akin to that followed by medieval knights. They hold this history and tradition in high esteem and might be seen as one of the most-advanced liminal races: where most others seem tribal, the centaurs forge metal, practice agriculture, and wear fitted clothing, as opposed to loincloths and similar drapery.

Centaur history is rife with battle and war, and the males of the species grew to respect brutish manliness, where the females kept more graceful and technique-focused ideals of strength. So, as the males grew more muscle-bound, crass, and hard on the eyes, the females remained largely slim and precise. In modern times, the females have grown displeased with the boorishness of their males and have taken to acquiring "teasers" (males (usually human) who sexually appeal to female centaurs to put them in the proper mood for intercourse).

Centorea Shianus and her mother are female Centaurs (known as Centaurides). One of The Eight Brothers is also dating a Centaur girl.


Main article: Monoeye

Cyclopes are a humanoid subspecies of Monoeye noted for their large stature.

Appearing in Greek mythology as members of a primordial race of giants, a Cyclops possess superhuman eyesight. They are an unusually large subspecies of Monoeye with exceptional smithing abilities. Their large eye allows them to accurately determine the temperature of fire and iron, which is the source of their unique smithing techniques. Other Monoeyes view their physical gifts (especially their breasts) with envy.[1]

Dairy Breed Centaur[]

Main article: Centaur

Dairy Breed Centaur is a demihuman subspecies of Centaur that produces an exceptional amount of milk. Among the already well-endowed female centaurs, Dairy Centaurs have particularly large breasts. Because of this, they often serve as wet nurses for other centaurs who have trouble producing milk, and due to this it's common for Dairy Centaurs to live among groups of other centaur subspecies. Though they are about the same size as standard centaurs, their waists and legs are especially thick. Dairy centaurs are easygoing and meek. Their maternal instincts are strong, and they love small things.[2]

While they have traditionally served as wet nurses since the age of antiquity, that practice has declined since the advent of formula. Additionally, the milk of some Dairy Breed Centaurs (and Centaurs in general) seems to have the effect of temporarily sending the consumer into an infantile state regardless of age. Their usual clothes are extremely low-cut dresses which only cover their nipples that aid them in being milked.

Meamil Airagu is a Dairy Breed Centaur.



Not much is known about Doppelgangers. They are said to be the exact copy of a person and should they ever meet the person they are copying, the original person will die.

Whether this means that the Doppelganger will be compelled to kill them or that the original person will simply die spontaneously upon sighting them is unclear.


Main article: Dragonewt

The Dragonewts (龍人族 (ドラゴニュート) Doragonyūto?, lit. "Dragon-man species"), also known as Dragon-kin (ドラゴンメイド, Doragon-meido), are a reptilian demihuman race said to be descended from dragons. Possessing scales and draconian wings, a dragonewt's scales are stronger than steel and as such they can block all cutting weapons and even deflect bullets.

Their tails are strong enough to support their entire bodyweight and can also detach if pulled forcefully. This attribute is a big secret kept within the race due to its association with lower class reptiles. Also, most Dragonnewts have a reverse scale (a scale that grows in the opposite direction to all the others). It is said that if the scale is touched, the Dragonewt would go into a fury and immediately kill the person responsible; it is unknown wether this is a spontaneous reaction (like a Centaur kicking when startled by something behind them) or if the scale is an extremely sensitive/private issue.

Draco and Lato are Dragonewts.

Dragonfly Fairy[]

Main article: Fairy

The Dragonfly Fairy is a Fairy subspecies that has the form of a miniature humanoid sporting a pair of dragonfly antennae, insectoid eyes, an insectoid abdomen protruding from their back and a pair of dragonfly wings that allow for flight.

Known to be fearless, swift and courageous, Dragonfly Fairies are agile and fast fliers and folk beliefs in various parts of the world dictate that the Fairies are in close relationships with snakes; being dubbed "Snake Doctors".


Main article: Dryad

Dryads, or Tree Nymphs, are pseudohumans that appear as tree spirits in Greek mythology. An incredibly long-lived species, Dryads have more in common with the common plant than they do with any animal; for example the leaves on a Dryad's head are fully capable of photosynthesis and their "legs" act as roots that they can have imbed into the ground to absorb soil nutrients.

A taciturn species with little social interaction, when a Dryad chooses to "set roots" within a forest, the forest's natural health greatly increases.

Kii and Riado are Dryads.


Main article: Dullahan
Main article: Grim Reaper

The Dullahan (デュラハン, Dyurahan) is a extremely rare humanoid liminal race whose most distinctive feature is their removable head. Despite this feature, Dullahan are not undead, and its unknown how their heads can remain alive separate from the bloodstream of their bodies. Metabolically similar to humans, a Dullahan is closely associated with supernatural myths; most prominently appear in Irish folklore as supernatural harbingers of death.

Although there is no evidence even in science that Dullahan have connections to the death and most people dismiss this just as mythological superstition, Dullahan do in fact have supernatural abilities. With their scythes they can cut the connections to ghosts that are still connected to the world of the living and send them back to the afterlife. in general, Dullahan are one of the most mysterious and least understood Liminal species.

Lala is a Dullahan. One of The Eight Brothers is also dating a Dullahan girl.



Dwarves are a humanoid race that typically dwell within mountains, they are variously associated with wisdom, smithing, mining, and crafting.

Possessing strong builds and stocky frames, with a height range of between 4 to 5 feet, Dwarves are noted for their rugged natures and possessing a higher than average constitution that makes them inherently resistant to most poisons.
One of the most famous aspects of Dwarven physiology is the beard. Dwarven men are prone to male pattern baldness, but compensate for it with the ability to readily grow thick, luscious, bushy beards and/or moustaches.

Early Zombie[]

Main article: Zombie

Early Zombies are zombies created before the establishment of preservation technology. To prevent further decay, they spend most of their time in refrigerated rooms. They are only able to go outside during cold winter periods. Because of their incomplete preservation, their brains are not entirely intact, making them very easygoing with energy levels of a person who has just woken up.[3]


Main article: Lamia
MonMusu Echidna

Echidnas (エキドナ, Ekidona) are a subspecies of Lamia. Because more of their bodies are covered by scales compared to lamias, echidnas are more closely related to Lizardfolk. Their name means "viper women", and true to their name, they possess venomous fangs inside their mouths. Their venom is a type of hemorrhagin (meaning that it breaks down blood vessels) and must be treated with caution. Their snake-like lower bodies are covered in a unique pattern reminiscent of vipers.

Developing a culture that focuses on strength, the Echidna are brutish and are aggressively blunt in interactions. That being said, while they value exuding a strong and intimidating appearance, they secretly harbor feminine desires and pleasures and love cute things. Privately indulging themselves with pendants and knick-knacks, they become greatly pleased and distracted if a male states that he considers them cute.

Eel Mermaid[]

Main article: Mermaid

Eel Mermaids are a demihuman subspecies of Mermaid with long bodies like the Lamia. Unlike most Mermaids, they have no trouble living on land. Because they produce even more mucus than standard mermaids, they have trouble wearing most clothes. Their massage techniques utilizing their mucus are highly advanced, and their mucus possesses cosmetic properties as well, making them popular among other mermaids. They have a tremendous amount of stamina and often stay up all night, making them sleep-deprived most of the time.

A group of Eel Mermaids run a massage program on the Beach near the Mermaid Hotel.

Elder Devil[]

Main article: Devil
MonMusu - Elder Devil

Elder Devils (エルダーデビル Erudā Debiru?) are a humanoid subspecies of Devil. Appearing even older than Greater Devils, they are the voluptous highest class of Devil. Though it's unclear if it's because of their older apparent age, they have the longest lifespans of all Devil species, and it's not uncommon for members to live several centuries. However, due to their extremely long lifespans, they are quite calm and composed, and beyond playing pranks.[4]

Saki and Elda are Elder Devil.



Elves are a humanoid liminal species that are physically identical to humans in nearly every way but for their ears being more elongated than a typical human's ears.

Described in (Norse-)germanic mythology (called "Alfr" or "Albs") as a highly magically inclined race, they are legendary for possessing long lifespans and slender/attractive figures; bearing no cosmetic imperfections or blemishes.

Eris is an elf. 


Main article: Fairy

Fairies (also known as Faerie, Fey or Fae) are a classification of beings that have been commonly described as miniature elf-like humanoids with bug-like wings that commune with nature, are magical or are otherwise skilled in magic, and can fly.

In human culture, the classification of "Fairy" originally referred to races that occupy a nebulous point between being magical humanoids and extraplanar beings; such as the Elf, the Nymph, the Gnome, the Dwarf, the Leprechaun, the Goblin and the Kobold, however, recent history has modified the term "Fairy" to only encompass species of diminutive humanoids such as Pixies and Sprites, with the term "Fae" continuing to be used as the umbrella term for magical/extraplanar beings.

Fii is a Fairy.



Fishfolk are a pseudohuman race resembling, in effect, humanoid fish with arms and legs, and with webbing between their fingers. Fishfolk are capable of breathing air and, ironically enough, are more capable on land than the far more humanoid Mermaids thanks to their functioning legs.

While appearances vary between individuals, the majority of their body resembles a fish, complete with visible gill covers, a thick tail, scales, and occasional tendrils above the mouth. The head appears to be at least a little different from a common fish's, however: the mouth is more articulated and capable of forming words, and the eyes, though lacking lids, have a noticeable degree of expression to them.

The Fishfolk seem to be in direct service to the Mermaid crown, and evidently handle most terrestrial affairs for their lieges.

Sebasstian, Flounnder and Gill are fishfolk. 


Main article: Zombie

The Flesh-Golem is a Zombie subspecies which is very similar in nature to the Frankenstein's Monster in that they are kinda like a man-made electric powered Zombie. Because of the way they were created, Flesh-Golems have the ability to control electricity by using their mind with concentration, allowing them to, for example, turn the light on and off in a specific area at will or overcharging electrical devices to the point where they explode.

Vikk is a Flesh-Golem.

Frankenstein's Monster[]

Main article: Zombie
0017 Full A Cropped

A Frankenstein's Monster is a subspecies of Zombie that has been "created" or "born" through the combination of compatible organic parts to form a sentient, functional being.

While similar in nature to, and sharing many attributes with the Zombie species, Frankenstein's Monster differ in how they are created; while Zombies were once living beings, Frankenstein's Monsters were created from "birth" as true undead beings.

Fran is a Frankenstein's Monster.

Fresh Water Mermaid[]

Main article: Mermaid

Fresh Water Mermaids are a demihuman subspecies of Mermaid. Unlike standard Mermaids which reside in warm ocean waters, these Mermaids regularly travel from rivers to oceans and back again. These stoic Mermaids never give up their journey regardless of any fierce rapids or waterfalls that may stand in their way. Because of this, they have slim and fit bodies. Their colors are more muted than those of standard mermaids.


Main article: Ghost

A Ghost is the soul or spirit of a deceased being that no longer has a physical body to "occupy" but is still present in the living world for varying reasons.

Able to alter their visibility and shape depending on how powerful they are, Ghosts are reportedly able to display abilities that otherwise negate the laws of time and physics. They are most notably able to, depending on how strong they are, performing varying levels of telekinesis and take possession of other beings.

Reports of Ghosts manifesting within human culture is widespread, dating back to pre-literate history. They are believed to tend towards occupying particular locations, objects, or people they were associated with in life.

Rei and Wladislaus Drakulya are Ghosts.


Main article: Ogre
Monmusu Gigantes

Gigantes are a humanoid subspecies of Ogre known for their immense size.

The largest known species to date, Gigantes are a massive Ogre subspecies reaching heights of over ten meters. Because of this, Gigantes are truly giant. Because they can easily injure humans with their massive bodies if they are not careful, when they have nothing to do they spend their time quietly holding still. Fashion is no concern as practically no clothes are large enough for them to wear, so they dress themselves in whatever rags they can to preserve some sense of public order and decency. They are not known to attack other creatures.[5]

Greater Devil[]

Main article: Devil
MonMusu - Greater Devil

Greater Devils are a humanoid subspecies of Devil. They are largely similar to Lesser Devils, though they have the bodies of humans in their late teens. They are not more mature Lesser Devils, but rather their own Devil species. They enjoy dressing in human fashion and venturing into the city at night to play rather malicious pranks. However, because their actual age is much greater than their apparent age, much like Lesser Devils, they are out of touch with fashion trends popular among younger people.[4]

Lethe is a Greater Devil.

Green Slime[]

Main article: Slime

Green Slimes are a pseudohuman subspecies of Slime. These Slimes possess in their composition high amounts of natural poisons, venoms, and toxins, causing a perpetual internal reaction that converts small parts of their mass into inert gases that escape as bubbles through the body surface. This production of buoyant bubbles makes the membranes of this Slime less sturdy and more fluid. As such, these slimes cannot hold full forms, and even their cranial pseudopods are runny. In conversation, these Slimes will slip hurtful and stinging remarks into their words, almost unintentionally. Assumed to have adapted to environments full of food sources that produce natural poisons.

Like all Slimes, they were considered simple-natured beasts until recently, and have no known developed culture of their own.

Grim Reaper[]

Main article: Grim Reaper
Grim Reaper

Grim Reapers are a Pseudohuman Race that take the appearance of a human skeleton wearing a dark cloak and wielding a scythe. They are the most notable and recognized being of death.

Similar to Dullahan, they wield the power of death, and kill those whose time has come by touching them, causing them to drop dead instantly. Their jobs appear to be a more serious version of Dullahan's, taking overdue souls Dullahans and other death beings have failed to collect to the afterlife, most likely by force.

A strike from a Dullahan's scythe causes them to retreat/vanish, possibly killing them, though it is unknown what it does in the long run.


Main article: Grimoire

A Grimoire was originally just a normal book, but due to the magic that has been imbued into it, it is now some kind of living being or Liminal, although it is difficult to define whether the book is truly "alive". A grimoire absorbs information from its environment through unknown mechanisms, and then used that information to affect its environment through magic. Grimoires possess a variety of abilities, such as absorbing the consciousness of people who read them and then trapping them in a fake magical world created by the Grimoire itself. This makes a Grimoire potentially dangerous, but also one of the most mysterious Liminals.



Halflings are a humanoid liminal species that are characterized for being physically shorter in height than the typical human (averaging at a height slightly taller than a typical human ten-year-old) and looking more "youthful" than a human of similar age. Their height and appearance (possessing no facial hair) often lead to them being mistaken for preadolescent human children despite being fully developed physically and sexually and possessing a more adult mindset, ability and demeanor.

Quick-witted, resourceful, courageous, inquisitive and surprisingly tough, Halflings are typically thought to live simple, bucolic lives of content rural peasantry, however, some have also been known to live in travelling caravans, wandering where the winds take them. While sometimes taken by the curiosity for adventure, they have no great ambitions outside of living a comfortable life, full of the simple pleasures of food, celebrating with their friends, strong drink and sharing various little trinkets and baubles. Gift-giving is especially important to them, as is family. As a result, Halflings often have huge families, with a single halfling home containing up to 25 halflings, although that is partially due to their longevity (averaging between 150 to 250 years, depending on the subspecies).
Children of a Halfling/Elf parentage are known as "Tallfellows" (the same race name is given to Dwarf/Elf children) or "Elflings", children of a Halfling/Dwarf parentage are known as "Stouts".


Main article: Harpy

Harpy is a monogendered (female) demihuman race with the body of a human and the wings and talons of a bird.

Harpies have slight frames for the purposes of flying, and as such may look far younger than they actually are. Harpy wings would seem best-suited for gliding, but are deceptively strong and can support a load at around twice the Harpy's mass in the air for prolonged periods of flight. Their legs and talons are also far stronger than they would seem, and can comfortably grip such loads during such flights.

Harpies are free-spirited and do as they please with little to no regard for rules. This is compounded by the harpy's rather unintelligent mind, which has difficulty remembering things the individual finds trivial, unimportant, or disagreeable, though affection and habit can root memories deep enough that they remain, even though it can be said that a Harpy's brain practically resets after three steps are taken, and this is not much of an exaggeration.

Papi and her mother are Harpies. One of The Eight Brothers is also dating a Harpy.

Heavyweight Centaur[]

Main article: Centaur

Heavyweight Centaur are a demihuman subspecies of Centaur. The most muscular Centaur subspecies, they are so powerful that they can move around unimpeded even while wearing heavy armor. However, since they rarely have opportunities to wear armor in modern times, they apply their strength to farming and agriculture. They are the largest and most muscular of the Centaurs, and their legs are far thicker than those of other centaur subspecies. However, most are gentle, good-natured, and absent-minded, and they are often dim-witted.[2]

Shaia and Cheron Du Pell are Heavyweight Centaurs. In addition, the Pell familie is a noble family of Heavyweight Centaurs that has produced many legendary knights.


Main article: Minotaur

Holstaurus, or Holstaurs, are a humanoid sub-species of Minotaur. They are similar to a human in all characteristics but for possessing a pair of cow-like ears upon their head. They are generally very gentle and are more associated with cows, while Minotaurs are more associated with bulls.

Ushiko is a Holstaurus and a member of the idol group ANM48.

Honey Bee[]

Main article: Insectoid
MonMusu Honey bee 1


Honey Bees are an insectoid demi-human liminal race who have four insectoid limbs, antennae, compound eyes, a bee abdomen complete with stinger, and wings, with which they can fly. Much like how most female mammals, including humans, produce milk, female Honey Bees can produce Royal Jelly from their breasts, which is said to be highly nutritious and valuable.

Honey is a Honey Bee. 



Jackalopes are a demihuman species from North American folklore. Similar in appearance to the Usagimimi (Rabbitgirl), save for the addition of deer antlers, Jackalopes are said to be aggressive and so dangerous that hunters and lumberjacks are advised to wear armour to keep from being gored by their antlers.

According to legend, during the days of the Old West, when cowboys gathered by the campfires singing at night, Jackalopes could be heard singing along. It is also said that Jackalopes only breed during lightning flashes and that their antlers make the act difficult despite the hare species' reputations for fertility.
While the Jackalope species is predominantly found in North America, stories of sightings of "horned rabbits" have risen in Asia, Africa and Europe.

Kalolo is a Jackalope.

Jiang Shi/Chinese Hopping Zombie[]

Main article: Zombie

The Jiang Shi or Chinese Hopping Vampire is a Zombie subspecies found primarily in Asian countries such as China and Taiwan. Unlike standard Zombies, hopping vampires are severely affected by the symptoms of rigor mortis, making their joints, especially their elbows and knees, particularly stiff. Because of this, they must practice tai chi every morning to stretch. However, their joints always stiffen to some degree while they sleep, forcing them to hop around with their elbows and knees locked straight out.[3]

Shiishii and Kyou are Jiangshi.

Killer Bee[]

Main article: Insectoid
Kiira's secrets

Killer Bees are an insectoid pseudohuman race who have four insectoid limbs, antennae, compound eyes, a insect abdomen complete with stinger, and wings. Though similar to the Honey Bee race in biology and societal structure, the Killer Bee race is thought to be considerably more aggressive in both philosophy and temperament and as such has been considered a problematic race in terms of diplomacy.

Killa is a Killer Bee


Main article: Kobold

Kobolds are pseudohuman beings that possess canine physical characteristics and traits.

Abundant in German folklore, Kobolds are known for mining rich veins of Cobalt; a mineral used in certain alloys and small electronics. As such, many Kobolds have earned themselves a small fortune in processing and selling cobalt on the market.

Possessing coarse fur covering their bodies, a Kobold's ears are around 4x more sensitive than a human's while their sense of smell is easily 1000x times more sensitive. Female Kobolds are more humanoid than males of the species, the latter which appear more bestial and less anthropomorphic.

Polt and Rudoru are Kobolds. Polt is also the owner of a sports club.



Kraken are a demihuman liminal race with the upper body of a human and the lower body of a squid, with two tentacles replacing the arms.

According to Scandinavian mythology, the Kraken are said to be of giant size and responsible for the destruction of numerous ships and other sea-faring vessels.

The species was first documented by humans in the 13th century where their behavior, and characteristics were described. It was also noted that it was said that there could only be two members of the species in existence and that, based on this, they are not capable of reproducing. Whether or not this is true is unclear.

Kura is a Kraken.

Kyuubi no Kitsune[]

Main article: Yokai
Luz Ninetei's Secrets

Kyuubi no Kitsune (lit. Nine-tailed Foxes) are a pseudohuman race that appear in Japanese folklore as intelligent beings that possess magical abilities to shape shift. A variation of the Werefox species, while some folktales speak of Kitsune of wildly different moralities employing this ability to trick others, other stories portray them as faithful guardians, friends, lovers, and wives. It is unknown if male Kitsune exist (as Kitsune can use both genders in their shapeshifting abilities) or if they are a single-gendered race.

It is said that the more tails a Kitsune has (they may have as many as nine) the older, wiser, and more powerful they are. Because of their potential power and influence, some people make offerings to them as deities.

Many Shinto Shrines posses statues of foxes as homages to Kitsune and the fox-god Inari Ōkami. One Kitsune, Ils Nineta, works at a Shinto shrine as a shrine maiden. Another Kitsune, Youko, is an exchange student in the cultural exchange program.


Main article: Lamia

Lamia are a monogendered (female) demihuman race with the upper body of a human and the lower body of a snake.

Prominent in Greek mythology, the Lamia were said to be either daemons that hunted and ate young children or monsters that would seduce young men and feed on their blood. While they are carnivores, and aggressively sexual, Lamia do not feed on live prey and are not "man-eaters" in the monstrous sense.

Miia and her mother are lamias. One of The Eight Brothers is also dating a lamia.

Lamprey Mermaid[]

Main article: Mermaid
Main article: Vampire
Ch49 - Yatsume profile

Lamprey Mermaids are a mermaid subspecies closely related to Eel Mermaids. While they are known for their preferred diet of suckling blood from other beings, Lamprey Mermaids can subsist on the same diet as conventional mermaids.

In Japanese folklore, lampreys are called "Yatsume-unagi" (八つ目鰻, "eight-eyed eels"). The name is derived from the seven external gill slits which line each side of a lamprey's head section which, along with their actual eye, makes it look like they have eight eyes on each side of their face. Folklore in some other countries include the lamprey's nostrils in the count, calling them "Nine-eyed Eels" instead.

Yatsume is a Lamprey Mermaid.

Land Animal Harpy[]

Main article: Harpy

The Land Animal Harpy is a demihuman subspecies of the Harpy adapted for terrestrial life, like ostriches and emus. Their wings are small, but their bodies have evolved to be larger than humans, like a ornithomimid or an ostrich. Using their thick, powerful legs, they can run at incredibly high speeds. Despite their large bodies and sharp claws, they are generally easygoing.[6]

Lea is a Land Animal Harpy. 

Large Arachne Breeds[]

Main article: Arachne
MonMusu Large Arachne

Large Arachne Breeds are a demihuman subspecies of Arachne that are far larger than standard arachne with thick legs and a covering of hair. They are very wild and aggressive. In addition to being strong, they also have venom, making them extremely dangerous to approach without caution. However, their venom is not particularly strong or harmful. They are not well-suited to interspecies exchange programs, and when they have interacted with humans, they were arrested for assaulting them and causing other problems.[7]

Lesser Devil[]

Main article: Devil

Lesser Devils are a humanoid subspecies of Devil.

As a race, Devils are highly variable with such things as wing size, wing strength, horn size, horn count, tail shape, and even possibly physiological body type. Mischievous by nature, a Devil's ears are capable of direction-focused hearing and are employed for the purposes of extremely effective eavesdropping.

Skilled in psychic abilities such as hypnosis, they seem to find the suffering and frustration of others to be pleasurable and will actively attempt to cause drama or trouble for their own entertainment. Whether this meddling is in conflict with the restriction of liminals harming humans is unclear.

Lilith and Sitri are Lesser Devils.


Main article: Vampire

Leeches are a pseudohuman species of invertebrate beings that have evolved to possess forms similar to humanoids. Similar to their animal counterparts, Leeches are humanoid Annelids and hermaphrodites (possessing both a penis and vagina) whose diet consists of feeding off of the blood of other beings. To do this, Leeches possess sharp teeth used to penetrate the skin of their prey and an anticoagulant enzyme in their saliva ensures that their prey's blood won't coagulate (dry up and solidify) while they are drinking it.

Leeches have aided medical science as far back as the ancient Greeks where they were used to aid in bloodletting. In modern times, Leeches help in procedures such as the reattachment of body parts and reconstructive and plastic surgeries and, in Germany, treating osteoarthritis.

Leechi is a Leech.



Lemurs are a pseudohuman liminal species that live on the island of Madagascar.
Human villages on the island believe that they are descended from the lemurs and as such the liminal species are treated with a degree of reverence, although this varies from village to village. Madagascar culture also believes that a lemur has supernatural powers and that, if a Lemur is killed, their spirit may come back from the afterlife to get revenge upon their killer and the killer's family.

Lightweight Centaur[]

Main article: Centaur

Lightweight Centaur, also known as Racing Centaurs, are a demihuman subspecies of Centaur that excels at running. They are smaller than standard Centaurs, with slimmer and tighter bodies. Though they approach their rank and records with a stoic attitude and love running, they are easily injured, and they devote much of their attention to studying health care. They can be rather moody, but this can be attributed to timidity or physical and mental innocence. Since their bodies are not as large, neither are their breasts.[2]

Tsen and Alusia van Dalsia are Lightweight Centaurs.

Living Painting[]


Living Paintings are a type of liminal that looks like a picture, but is able to move within it's canvas. While Living Paintings are connected to their frame, they are free to leave their canvas and walk around outside of it at any time.

Aya is a Living Painting.


Main article: Lizardfolk

Lizardfolk, or Lizardmen, are a demihuman race that possess lizard-like attributes such as claws, scales and a detachable tail.

While reptilian, Lizardfolk do posses aquatic abilities and are particularly gifted swimmers, able to use their tails to aid in swimming. A lizardfolk's tail stores their body's nutrients. If they should lose their tail, worse case scenario is that they'll die of malnutrition.

Liz is a Lizardfolk working as an agent in the Talio private security firm. Another Lizardfolk named Liza is a student in the Exchange Between Species Bill.

Long Leg Breeds[]

Main article: Arachne
MonMusu Long Leg

Long Leg Breeds are a demihuman subspecies of Arachne that have thinner and longer legs than standard arachne. These large Arachne are mild-mannered. They cannot produce thread, but they move surprisingly quickly to secure their prey. Their hunting instincts are so powerful that they will sometimes abandon the prey they have captured to pursue new prey. As they are especially uncompromising regarding the extermination of household pests, they are respectfully known among those troubled by such pests as 'sergeants'.


Main article: Dryad
MonMusu - Mandragora

Mandragora, also known as Mandrakes, are a pseudohuman sub-species of Dryad with rootlike qualities. Preferring solitude, even among the timid plant-like species, Mandragora are known for being exceptionally timid and cowardly, although this is not so much due to xenophobia as being due to extreme shyness.

Unlike the legends associated with them, the scream they emit when removed from the ground is not fatal, but as their scream is very loud, it does sometimes cause loss of consciousness in those standing in the vicinity.


Main article: Insectoid

Mantis are an insectoid pseudohuman race who have four insectoid limbs (the most prominent of which are similar in shape and form to the "raptorial legs" of their mantid cousins), antennae, compound eyes, an insect abdomen, wings and other traits of a praying mantis.


Main article: Dryad
Kino Secrets

The Matango is a mysterious Liminal species which, despite being classified as a plant-like Liminal, actually has more fungal qualities.

Due to their spores, which have a hallucinogenic effect on other living beings, Matango are considered as dangerous and are generally forbidden from participating in the Inter-Species Cultural Exchange program. In fact, however, Matango have no control over their spores, causing them to harm others without meaning to. Apparently there are different species or subspecies of Matango as the hallucinating effect of the spores varies depending on the species of Matango that spreads them. In contrast to fungi, Matango require other requirements for reproduction than just their spores, although more precise information on this are not known.

Kino and Mashu are Matangos.


Main article: Lamia

Medusae (メデューサ, Medyūsa), also known as Gorgons (ゴーゴン, Gōgon), are a subspecies of Lamia with snakes for hair. Their gaze is said to turn creatures into stone, but in reality they possess no such ability. However, their gaze does seem to be very keen, and their glare makes living creatures unable to move, as though they indeed have been turned to stone. This is not due to any malicious intention on their part, however, but simply due to the fact that they have poor eyesight (They only appear to be glaring as they are only trying to see more clearly). Due to this most Medusae wear glasses. Because their hair is made of snakes they are tragically troubled by the fact that they can't change their hairstyle.

Their culture is based on the value of knowledge and intellect and, although physical ability is a factor, they value an individual's intelligence more highly over their physical appearance. However, the species also harbors a hidden romantic streak; favoring reading/writing poetry and sharing diary entries with their intended lovers.

Media and Shiana are Medusae.


Main article: Lamia

Melusines (メリュジーヌ, Meryujīnu) are a Lamia subspecies with dragon wings on their backs. Due to this, they share characteristics with Dragonewts. In contrast to other Lamia subspecies who share traits with terrestrial snakes, Melusines are more similar to sea snakes and prefer to live by the shore near oceans, lakes or rivers. Sadly, their wings aren't strong enough to lift their long lower bodies, making said wings being more vestigial in nature.

As a culture they place high value on pleasure and sensuality and have earned a reputation as having the highest libidos amongst the Lamia subspecies. Their unrepentant pursuit and knowledge of sexuality and their unabashed interest and desire in all forms and functions of sex is infamous even amongst the already sexually-free Lamia species.

Ena, Gina and Lucine are Melusine.


Main article: Mermaid

Mermaids are a demihuman liminal race with the upper body of a human and the lower body of a fish.

The Mermaid civilization is one of the largest extraspecies civilizations, and would seem to be present throughout most of the Pacific and Atlantic oceans, if not others. Given the sheer size of this range, Mermaids are likely under a number of cooperative kingdoms, and not just a single monarchy. Mermaids incorporate into their range many other marine extraspecies, the Fishfolk most notably.

Though Mermaids have been noted as trading with humans in the past, it would seem a number of recent events has soured this relationship and driven at least some mermaid houses to seek isolation from the human world.

Mermaids vary individually by color of their tail and fins, the former of which commonly matches the individual's hair color. These colors are often soft, flowery, and bright like that of tropical fish, as opposed to the more solid and hard colors of the Fishfolk.

Meroune Lorelei and her Mother are Mermaids. One of The Eight Brothers is also dating a Mermaid.


Main article: Minotaur

Minotaurs are a demihuman race with bovine attributes. Affiliated with Greek mythology, Minotaurs are visually muscular, possess cloven feet and are easily taller than an average human while also possessing greater physical strength that may rival a Centaur or even an Ogre. There are two types of Minotaur, the lactating "milk producing" types and the agressive "bullfighting" types. Male Minotaurs seem to be much more beast like in appearance, possessing a bull-like head. Just as it seems to be common for females to wear cowbells around their necks, it seems to be common for males to wear nose rings.

Much like their bovine cousins, female "milk producing" Minotaurs produce large quantities of breast milk. If they do not milk their breasts regularly, their breasts become swollen to the point of it being uncomfortable. Minotaur milk is said to be both nutritious and delicious.

Cathyl is a Minotaur. One of The Eight Brothers is also dating Minotaur girl.

Mole Men[]


Mole Men are a demihuman race that possess the traits of moles. They mostly live underground, and tend to wear sunglasses when when in brightly lit areas.[8]


Main article: Monoeye
Manako's Secrets

Monoeyes are humanoid beings that possess the notable feature of only having one eye.

Monoeyes are able to see objects up to 2km away without assistance; however, they have poor depth perception, making it difficult for them to navigate 3-dimensional spaces, and their eyes require constant protection from harsh environments as their size makes them susceptible to dryness and allergies.

Manako is a Monoeye who works in M.O.N. as the team's sniper.


Main article: Insectoid
Main article: Vampire

Mosquitos are an insectoid pseudohuman race who have four insectoid limbs, antennae, compound eyes, an insect abdomen, wings and other traits of a mosquito.

Members of the race posses a needle-like proboscis inside their mouths that they use to penetrate the skin of their prey and suck liquids such as blood. Their saliva possesses anesthetic properties that they spread over the flesh of their prey before penetrating them. While they mainly subsist on blood, they can also drink honey and fruit juices.

They're concerned that there are very few partners to suck blood from during their study abroad.

Moskii and Česká are Mosquitos.


Main article: Insectoid

Mothmen are an insectoid pseudohuman race of beings who possess moth-like attributes. Encountered extremely rarely, Mothmen are thought of as agents of destiny and heralds whose presence precede catastrophic events where loss of life is expected, however, they do not actually posses these abilities. Nocturnal, like their animal counterparts, they are easily distracted by bright lights and often camp outside of 24-hour convenience stores due to this.

Actia is a Mothman. 


Main article: Zombie

A Mummy is a zombie subspecies from dry desert areas. Their arid environment keeps them safe from decay, and even without preservative measures, their bodies remain intact. However, their arid environment has also robbed their skin of its moisture, requiring them to take long baths to replenish their fluids. They supplement this by sucking the life force out of young men to preserve their beauty, but this functions only as a placebo. Since many of them were ancient royalty or nobility in life, they often have difficult personalities.[3]

Mokunaii the 11th and Sekmeti are Mummies. 



Also known as a Catgirl, a Nekomimi is a humanoid species similar to a human in all characteristics but for possessing a tail and a pair of cat-like ears upon their head.

Nekoko is a Nekomimi and a member of the idol group ANM48.



Also known as a Mousegirl, a Nezumimi is a humanoid species similar to a human in all characteristics but for possessing a tail and a pair of mouse-like ears upon their head.

Nezuko is a Nezumimi and a member of the idol group ANM48.


Main article: Centaur

Nightmares are a demihuman subspecies of Centaur that can enter the dreams of sleeping individuals and create nightmares, although the exact reason why Nightmares must give other people nightmares, except from that it is part of the Nightmare culture, isn't explained. If a individual is awake, a Nightmare can also use hypnosis to put the person into sleep, although this skill must be learned as hypnosis is not an innate ability of the Nightmares.

Rem Nightdrem is a Nightmare.


Main article: Ogre
Tionishia's Secrets

The Ogre (female: Ogress), known as Oni in Japan, is a humanoid race of sub-giants famously depicted in folktales and European mythology as violent, cannibalistic, man-eating monsters.

While many of their depictions in mythology may not hold true to how they are in reality, Ogres are indeed very tall in stature, ranging from two to three meters, and possess incredible strength. Thought to live in mountainous areas or wastelands, most Ogres have a single large horn protruding from their head and tend to have thick, tanned skin. Despite their large size, many ogres are laid-back and carefree.

Tionishia is an Ogre who works as an agent for the Monster Ops: Neutralization squad. Her sweet personality is in stark contrast to the violent, man-eating monsters depicted in folklore. Another Ogre named Rohe is a student in the Interpecies Exchange Bill.

One-eyed Monk[]

Main article: Monoeye

One-eyed Monks are Monoeyes who have converted to Buddhism. Aside from being nuns, they are no different from standard monoeyes. Perhaps because they are not troubled by the looks they receive, they are extremely serious and hard on themselves as well as others. They use their eye to spot those who neglect their training.[1]


Main article: Ogre
Main article: Yokai

Oni are a humanoid subspecies of Ogre that appear in Japanese folklore as a type of devil or ogre.

Aside from their colorful skin ranging from red to blue, Oni are no different from standard Ogres. Standing only two meters tall, they are slightly smaller than Ogres, making them the smallest of the Ogre subspecies. Though they are still larger than humans. Red Oni are thought to be crybabies and Blue Oni are considered self-sacrificing, but it is unclear whether or not there is any truth to these claims. It is customary for Oni to dress in tiger-striped clothes.[5]

Kinu is an Oni working as an agent in the Talio private security firm. Another Oni is Kyuuki.



Also known as a Wolfgirl, an Ōkamimimi is a humanoid species similar to a human in all characteristics but for possessing a tail and a pair of wolf-like ears upon their head.

Rouko is an Ōkamimimi and a a member of the idol group ANM48.


Main article: Orc

Orcs are a race of brutish, aggressive and generally lustful pseudohumans. Possessing prominent fangs and a snout, their features tend to be "pig-like" in appearance. Taller and thicker than a human by half, they would have about the strength of a bear, and have noses capable of accurate olfactory sense to up to a kilometer out.

Considered to be aggressive scavengers and opportunistic carnivores, they possesses human-level intelligence and an even higher level of cunning. Violent by nature, they will fight ferociously if compelled but tend towards more chaotic/destructive behavior such as pillaging, rape and/or cowardice.

The Pioneer Orc Renaissance Kinsmen is a group of Orc terrorists who are dedicated to the cause of increasing Orc content in mainstream erotic manga. A Orc girl named Ruka is a student in the Interpecies Exchange Bill.


Main article: Werewolf

The Orthrus is a unique werewolf-like species that shares a consciousness between two bodies. Each individual Orthrus, while possessing one consciousness, mind and soul, possesses two physical bodies that can operate independently or in tandem to each other. As an Orthrus' two bodies are actually one person, both bodies can speak in synchronization, can share their thoughts and experiences between each other and can even physically feel what the other is physically feeling.

Luthros is a Orthrus.

Owl Harpy[]

Main article: Harpy

The Owl Harpy are an owl-like Harpy subspecies. Due to being a nocturnal species, Owl Harpies have excellent night vision. They also become more active after sunset and seem to be as intelligent as humans by harpy standards. [8]

Mimi is a Owl Harpy.



Pans are a caprine demihuman race possessing characteristics of a sheep, including a pair of curled horns on the head, a small tail, ungulate ears, and hoofed feet. They are notably a tad shorter than the average human.

Presumed to be related to the Satyrs, wool grows out of every surface of a Pan's body, excluding the hooves, hands, fingers, and face. If left unchecked, this wool will grow at enough of a pace to become unbearable to the individual in question without occasional shearing. Similar to Satyrs and Minotaurs, Pans also produce breast milk continuously even outside of pregnancy, requiring them to be milked at least once a day. Pans are true friendly to their nature, shy and sheepish in general, and see the shearing process as one of extreme embarrassment. As expected of the symbols of virginity (the sheep), they are all protective of their chastity.

Merino and Kehp are Pans.

Paper Dancer[]

Main article: Fairy
Main article: Yokai

The Paper Dancer is a fairy-type liminal that has a thin/light body constructed out of a paper-like material and the ability to telekinetically control any items made out of paper. Despite not having wings they posses the ability to float/glide. They do not seem to posses the power of flight, although legend claims they can use wind drafts to glide through the air in a manner similar to flight.
Users of Onmyōdō Charms are known to form partnerships with Paper Dancers, although Paper Dancers are known as "Shikigami" in Onmyōdō culture.

Maika is a Paper Dancer.


Main article: Centaur

The Pegasus ("Pegasi" plural) are a demihuman subspecies of Centaur that can fly using the powerful wings attached to their equine bodies. Famously appearing in Greek mythology in the stories of several heroes, the Pegasi serve only those who are truly noble and morally strong. Their clothes are custom-made for maximun movement of their wings.

Pegasania Bellerophon is a Pegasus.

Pink Slime[]

Main article: Slime

Pink Slimes are a pseudohuman subspecies of Slime. A rare species of Slime that lives in flower fields, they consume nectar and soft flower buds, making them give off a sweet nectar-like scent. It is unknown what they do when flowers are not blooming.

As they are able to acquire nutrients effortlessly, they have very upbeat and optimistic personalities. Their diet of flowers and nectar, which plants use to create offspring, makes their own thinking lewd and they are in heat all year round.

Like all Slimes, they were considered simple-natured beasts until recently, and have no known developed culture of their own.

Poultry Harpy[]

Main article: Harpy

The Poultry Harpy is a demihuman Harpy subspecies adapted for laying eggs. They cannot fly and are unable to run at high speeds like Land Animal Harpies. However, they produce far more eggs than other Harpy subspecies, and they continuously lay eggs nearly every day. Poultry harpies have a red crest on top of their heads. Unlike chickens, their appearance is natural, not selectively bred. They are very cowardly (chicken).[6]

Raptor Harpy[]

Main article: Harpy

Raptor Harpies are a large eagle or hawk-like demihuman subspecies of Harpy. Their bodies are very similar to human bodies. Though other Harpy subspecies are omnivorous, Raptor Harpies are carnivores. They are proud and difficult to please, an unusual trait among the generally amicable Harpies.[6]

Haru and Hakuto are raptor harpies.

Red Slime[]

Main article: Slime
MonMusu Red Slime

Red Slimes are a pseudohuman subspecies of Slime. Compared to normal Slimes, red slimes are more acidic and volatile, and their bodies contain more digestive juices. They are smaller than standard slimes and have more aggressive personalities, and are known for their acrid behavior and remarks.

It is believed that they developed acidic bodies capable of digesting just about anything to adapt to life in environments with little edible matter.

Like all Slimes, they were considered simple-natured beasts until recently, and have no known developed culture of their own.

Rock Lizard[]

Main article: Lizardfolk

Rock Lizards are a subspecies of Lizardfolk that are physically adapted to scaling sheer surfaces without assistance.


Main article: Dragonewt
Monmusu - Ryu-jin

Ryu-jins (龍人 Ryūjin?) are a Demihuman subspecies of Dragonewt. But unlike Dragonewts, they resemble Eastern Dragons. They have deer-like horns, and long tails. But unlike Dragonewts, they have no wings, making them appear to be lizardmen at first glance. They live much longer than most humans, up to ten times a normal human lifespan. Like Dragonewts, their backwards-facing scale are their weakness.[9]

Myuu is a Ryu-jin.


Main article: Lizardfolk

Salamanders are a group of lizard-like liminals who are known to allegedly live near volcanoes, can spew flames, and are completely immune to fire and high temperatures.

Salamanders are considered one of four liminal species that embody the cardinal elements; alongside the Sylph (Air), Undines (Water), and Gnomes (Earth).

Sala is a Salamander.



Satyrs are a caprine demihuman race possessing characteristics of a goat, including a pair of curled horns on the head (although not as curled as Pans), they have small tail, ungulate ears, and hoofed feet. Their skin tends to be dark, and they are a tad shorter than the average human.

Presumed to be related to the sheep-like Pan, Satyrs are quite different in disposition. Whereas the Pan represents innocence and virginal purity, the Satyr represented energetic spirituality. Due to this, Satyrs appear to be bold and outgoing, and are known to be lustful hedonists. They have a strong affinity with nature, and love plant life. Similar to Pans and Minotaurs, Satyrs also produce breast milk continuously even outside of pregnancy, requiring them to be milked at least once a day.

Shire and Saane are Satyrs.



Scorpions are a arachnid demihuman race with characteristics of a scorpion. In some regions, they are regarded as gods. Although they posses a poisonous stinger at the end of their tails, the venom is actually pretty weak; becoming weaker as their body gets bigger.

Their arms end in pincers, making it difficult to do intricate hand work, such as tying their hair.


Oct's Secrets

Scylla, also known as Cecaelia, are a demihuman liminal race with the upper body of a human and the lower body of an octopus.

Associated with Greek mythology, the Scylla are thought of as an aggressively solitary species that reside within underwater caves and ocean-borne cliff faces; however, some myths claim that the Scylla share a symbiotic partnership with the whirlpool-producing Charybdis.

The race also have a reputation of being sea witches, possessing vast power over the ocean tides, weather and moon, though there is no truth to these claims, rumors still persist.

Octo and Kyure are Scylla.


Doppel's Secrets

Shapesifters are a race of beings that can take on any appearance they desire and are known as "shadow people". Although their true forms are unknown, they are said to be quite eldritch. It is believed they are related to a being called the "Faceless God". They are one of the few races who feels nothing wrong in going au naturel at all times in whatever places.

Doppel is a Shapeshifter, although she refers to herself as a Doppelganger as people seem to understand a Doppelganger better than a Shapeshifter.

Shark Mermaid[]

Main article: Mermaid
MonMusu Shark

Shark Mermaids are a demihuman subspecies of Mermaid with sharp teeth and the lower body of a shark. Shark mermaids are entirely carnivorous, a rare trait among the predominantly omnivorous mermaids. Their personalities are wild and aggressive. In the past they engaged in pirate-like activities, but more recently they have begun to abstain from piracy. Like sharks, the skeleton in the lower bodies is made of cartilage, making them very delicate. They are mentally weak, as well.


Main article: Insectoid

Silverfish are an insectoid pseudohuman race of beings who are known for being nocturnal, solitary, shy, residing within humid environments and are legendarily known for eating the paper of old books and newspapers (although their diet is not limited to just paper).

Shii-Mii is a Silverfish.


Main article: Slime

Slimes are a race of Pseudohuman beings composed of a gelatinous water-based substance whose bodies can be molded into various physical forms.

Slimes are actually not understood to be liminals at all, but fall under a category of Beast. Slimes are amorphous life forms likely consisting of several membranes to contain their mucus-like composition. In addition, a slime possesses two eyes, these evidently being akin to brains as well as visual organs. The psuedopod on top of the Slime is composed of different mucuses, and has special sensory abilities. Suu's pseudopod can read minds, though it is unclear if this is unique to her as per her apparent uniqueness. The Slime commonly moves by sliding over and adhering to surfaces by way of its secretions, and will digest anything absorbed into its body, though its primary sustenance is derived from moisture, the consumption of which will increase the Slime's volume.

Initially, very little has been documented on Slimes, it would seem that further research has in fact turned up a variety of slimes, all capable of holding humanoid shapes. With the several subspecies now outlined, Slimes are likely well on their way to being considered fully-privileged liminals. Recent discoveries now show that all Slimes are both intelligent and fast learners, and that their initial ignorance was due to them not having a culture of their own.

Suu is a Slime. One of The Eight Brothers is also dating a Slime.

Small Breeds[]

Main article: Arachne
RaceCardSmallBreed Arachne

Small Breeds are a demihuman subspecies of Arachne that are smaller than the standard Arachne. Their legs are short, but they can move much faster than standard arachne, and they are good at jumping and full of energy. Instead of spinning webs, small arachne wander around on the ground in search of prey. They can produce thread, but they only use it to stop their descent when they fall from high places.[7]



The Sphinx ("Sphinges" plural) are a demi-human liminal race with the upper body of a human, the wings of an eagle for arms and the lower body of a lion.

While the race is said to have originated in Egypt, Sphinxes have appeared in numerous mythological accounts around the world including Egypt, Greece and South and Southeast Asia. In all legends they are said to be guardians of certain locales who challenge wanderers with riddles. If the wanderer is able to answer their riddle they allow the wanderer to pass and are sometimes said to kill themselves for their failure to best the wanderer, if the wanderer is unable to answer the riddle, the Sphinx would kill them and devour their body.

While some stories about Sphinxes are wrong (they don't eat people), they have acted as servants for the Mummies since ancient times, creating a close bond between the two Liminal species up to the present day.

Nemes and Abul are Sphinxes.


Main article: Devil

Succubi are a devil subspecies that can be similar in appearance to Lesser, Greater or Elder Devils but lack Devil horns, posses a Womb Tattoo-like marking on their lower stomach, and possess a prominent interest in sex and all things sexual.

Religious traditions in human culture hold that Succubi live by sustaining themselves on “life energy" stolen through sexual intercourse and that repeated sexual activity with a Succubus may result in the deterioration of health or mental state, or even death. While whether this is true or not is unknown, Succubi culture is entirely rooted around the act of sexual intercourse; with the desire for sex, fornication and pleasure forming the basis of their cultural thinking and moral values, and as a result they are an extremely lustful and openly lascivious race. Not only are they physically beautiful, everything from their gestures to their voices will charm an individual and inflame lust. Their techniques for seducing and pleasing men and women alike are highly valued and are in some ways more effective than raw fighting abilities.

Emma is a Succubus.


Main article: Yokai

Tengu are a demihuman liminal species with black bird-like wings, elfin ears and the avian characteristics of crows.
Considered a mythical creature in Japan, they were historically thought to be troublesome demons but are now respected as highly skilled swordsmen and protectors of sacred forests and mountains.

Shizuka is a Tengu. 

Tetra Arms[]


Tetra Arms are a species of demihuman that possess two or more pairs of arms.

A nomadic race, prominently living within tribes in desert environments, the more active members of Tetra tribes loot passing caravans for treasure, provisions and sometimes abductees.

The tattoo paint across their bodies are proof of their courage.


Main article: Dryad

Treefolk are pseudohumans that are best described as anthropomorphic trees. Varying in appearance, it is discerned that Treefolk match the appearance of the trees or forests that they reside near. They also share the same strengths and weaknesses of trees. While their skin is extraordinarily tough, and very much like wood; they are vulnerable to fire and chopping blows.

Treefolk are said to be an extremely patient and cautious race, with a sense of time more suited to trees than short-lived mortals. The largest of their kind are said to be strong enough to tear apart stone.



Triclopes are a humanoid liminal species that are physically identical to humans but for possessing a third eye on their forehead.

It is thought that Triclopes possess minor telepathic or empathic abilities, and generally use these abilities only to detect danger, sense emotions, or telepathically communicate with other Triclopes. It is said that some also have the abilities of clairvoyance, psychometry, and premonitions.


Main article: Ogre

Trolls are a humanoid subspecies of Ogre known for their great strength.

Stronger and larger than regular Ogres, Trolls can reach heights over three meters tall. They have a greenish brown skin and one or two short, thick horns on their head. They have long, portruding lower canines. Both males and females are extremely well-muscled with massive limbs, but like standard Ogres, they are easy-going and carefree. Because they are physically much larger than humans, they are unable to wear most clothes, leading to concerns regarding their inability to dress fashionably.[5]



Undines are a species of elemental beings associated with water.

Undines are considered one of four liminal species that embody the cardinal elements; alongside the Sylph (Air), Salamanders (Fire), and Gnomes (Earth).

Undines are revealed to be able to produce Slimes which are a completely different breed of monster girls but the method is still a mystery.

Dina and Suu's Mother are Undines.


Main article: Centaur

Unicorns are a demihuman subspecies of Centaur that have had myths and legends written about them since before Greecian antiquity.

Known as a symbol of virgin purity, Unicorns are said to be "only tamable by virgin women". It is also said that their horns are able to cure all diseases; resulting in a mass-hunting for the species. Hunters usually used the species' fondness for virgin women to lay traps to capture them and harvest their horn.

Nicole Unicole and Keros are Unicorns.



Also known as a Rabbitgirl, an Usagimimi is a humanoid species similar to a human in all characteristics but for possessing a pair of rabbit-like ears upon their head and a rabbit tail.

There is a Usagimimi performing as a member of the idol group ANM48.


Main article: Vampire
Kyurii Secrets English

The Vampire (吸血鬼, Kyūketsuki) is a humanoid species that is famed in mythology for their aversion to sunlight and their possession of fangs for sucking the blood of other beings.

Due to their natural diet of blood, Vampires were considered predatory and associated as Devils until around the early 18th-century in southeastern Europe when they were first identified as their own species by human culture. As humans seemed to be their primary prey, Vampires were considered to be evil beings amongst the human populace and were greatly feared for their ability to lure their prey into being fed upon and their ability to turn "normal beings" into vampires thanks to a "Vampire Virus" that is transmitted via their bite in a similar manner to Zombies.

Although some facts are true to a degree, the traits of the vampire species has been exaggerated over time due to fear-fuelled myths and folklore. For unclear reasons, Vampires now exist in near extinction.

Curie Drakulya, Wladislaus and Aluca are Vampires.


Main article: Werewolf

Werecats are a pseudohuman species of beings who are spoken in myth of possessing the ability to shapeshift between the form of a human and the form of a cat.

Sometimes treated as gods in certain areas, werecats are flighty and pleasure-seeking, and can be hard to get along with as a result. However, they are strongly susceptible to matatabi (also known as Silvervine; an alternative to catnip that serves as a popular cat treat in Asia) and, if exposed to it, will become docile and extremely affectionate. Many things, including matatabi, may also produce a Flehmen response in werecats.

Were and Suzie are Werecats.


Main article: Werewolf

Werefoxes are a pseudohuman species of beings who are spoken in myth of possessing the ability to shapeshift between the form of a human and the form of a fox.

Also known in Japan "Youko", for some reason, many of them take up positions as miko shrine maidens. Some members of this subspecies possess nine tails and are called Kitsune; these individuals possess rudimentary transformation powers.


Main article: Werewolf

Wererabbits are a pseudohuman species of beings who are spoken in myth of possessing the ability to shapeshift between the form of a human and the form of a rabbit.

As rabbits are commonly thought to be in heat all year long, wererabbits are often asked if this is the case with them as well, much to their displeasure. In fact, even among true rabbits this is only the case for the European rabbit, so it is not accurate for Wererabbits. With that said, their sex drive is actually very close to that of the European rabbit.


Main article: Werewolf

Werewolves (狼男, Ōkami Otoko), also known as "Wolfmen" or "Wolf People", are a pseudohuman species of beings who are spoken in myth of possessing the ability to shapeshift between the form of a human and the form of a wolf.

While the image of the 'lone wolf' is popular, they actually prefer communal living in the form of packs. While most monster species are affected by the Full Moon, werewolves can prove even more trouble due to their pack social structure and their great physical strength.

Lyca and Garu are Werewolf.

White Tiger[]


White Tigers are pseudohuman liminal species with the physical features of a Bengal Tiger.

Considered to be one of the four mythical animal tribes of China (alongside the Azure Dragons, the Vermillion Birds, and the Black Turtles), all four of which are kept in balance by the Huang Long race, the White Tigers are extremely secretive; said only to appear when the Emperor ruled with absolute virtue and/or if there was peace throughout the world. They represent the element of metal, the western provinces of China and the season of autumn.

Sya Hu is a White Tiger.


Main article: Dragonewt
Monmusu - Wyvern

Wyverns (ワイバーン Waibān?) are a Demihuman subspecies of Dragonewt. Unlike Dragonewts, their arms and wings are joined, meaning their wings are large enough to fly instead of gliding. They are very good fliers. They are much more wild than the usual dragonewt and ryu-jin, and are extremely aggressive. However, because they perhaps resemble harpies, they are not particularly intelligent, and they are easily deceived.[9]

Fere is a Wyvern.



Yeti (also known as Abominable Snowmen) are a pseudohuman species of beings that occupy the Himalayan region of Nepal, Bhutan, and Tibet.

Not much is known about the species due to their natural habitat being extremely inaccessible to humans, however based on encounter reports Yetis resemble "upright gorillas", standing at around 2-3 meters in height, possess enhanced strength and are adapted to living in freezing temperatures; possessing thick fur and a high body temperature. Due to these latter traits they are extremely intolerant to warm environments.

Miti is a Yeti.


Main article: Yokai

A Yuki-onna (雪女) is a pseudohuman that appears in Japanese folklore as a snow spirit of inhuman beauty that appears before travelers trapped in snowstorms with the purpose of killing them.

While the Yuki-onna race is not inherently malevolent, their stoic demeanor and their natural environment being hazardous to humans, may have given rise to myths that they intentionally cause deaths.

While possessing elemental control over ice and snow, Yuki-onna can not live in high temperate environments without assistance.

Yuki and Yukio are Yuki-onna.


Main article: Zombie
Zombina's Secret

Less a liminal race than a condition, Zombies, also known as living corpses or the living dead, are totally dead in the biological sense but still possess enough brain activity to continue function as though they were biologically alive. They are former humans brought back to life thanks to a special infectious disease.

Due to being biologically dead, a Zombie's body is vulnerable to the same manner of decay a normal corpse would exhibit, and unless prosthetic intervention is taken, their bodies will presumably rot past the point of functioning. Prosthetic intervention can be in the form of being doused in preservative chemicals or receiving artificial organs. Some Zombies may also graft replacement parts to themselves. As they do not heal from wounds, the practice of "limb replacement" also serves as a manner of repair.

Whether there is a restriction on what they may graft onto themselves or if they are indeed able to graft any sort of thing anywhere on their body is unknown.

The brain is assumed to be responsible for a Zombie's body functioning, and physical connection to it in some way is necessary for the Zombie to become animate. While at least moderate damage to the brain has not shown to have any negative effects on the Zombie in question, whether a body would continue without its brain is currently unknown.

Given their effective immortality and numbness to pain, Zombies are generally laid back and easy going; particularly in situations where life and death are concerned.

Zombina is a Zombie that works as a commando operative in the M.O.N. combat squad. Yuuhi Hajime was originally a human but was turned into a zombie when she was infected by one of Zombina's teeth.

Elite Liminals or Greater Species[]


Among extraspecies, there are some who posses abilities that modern science cannot explain or describe and pass beyond human understanding. Though it is not an officially recognized moniker, there are those who call them "Elite Liminals", or "Greater Species", for the powers they wield. There is no precise definition of what an "Elite Liminal" is, which is why this term is used to summarize Liminal species that have little or no similarities with one another. For example Yuki-onna, Salamanders and Undine are considered "Elite Liminals" for their abilities to control elemental forces while Dullahans are considered "Elite Liminals" for their ability to detach their heads and still live (and also for their supernatural abilities).

While even normal Liminals can have trouble living in human society, this is particularly difficult for "Elite Liminals". As the Japanese Government doesn't have a system in place to account for it, they just treat "Elite Liminals" like all other Liminal species. Because of this, "Elite Liminals" haven't had any other options, which not only puts them in unsuitable jobs, but also doesn't really allow them to use their supernatural abilities.



  • The liminal species "Backbeard" is based off of Beako; a popular Meme-character from Futaba Channel (2chan) and the de-facto mascot of the Sankaku Complex imageboard.
  • In the manga series, the official term for monster species is "Liminal", but in the anime, they are called "Demihumans" instead.
  • The Shapeshifters' true nature heavily references the Cthulhu Mythos. The entity known as the "Faceless God" in particular seems to be inspired by the mythos' Outer God Nyarlathotep, who is known as both the "Faceless God" and the "Crawling Chaos".
  • Centorea reveals that there are many other liminal species that have not yet been discovered or acknowledged by humans.
  • Orcs and Kobolds are depicted as pig-men and canines in Eastern culture due to the original Dungeons & Dragons 1st edition book depicting them as such. While the image of both races later evolved to be more ogre-like and reptilian in western culture, in eastern culture they remained as they were originally depicted in Dungeons and Dragons.
  • Although it is known that the governments kept the existence of Liminals secret until the introduction of the Interspecies Exchange Program three years before Volume 1, it remains unclear how they credibly managed to do this given the high number of Liminal species, especially since the fact that there are also some Liminal species that are unknown to human society and therefore to governments. In addition, some examples such as the birth of Centorea shows that there were humans outside the government who knew about the existence of Liminals long before the Exchange Program. Due to the many legends surounding Liminals, it is likely that there have always been humans who came into contact with them, although the governments have always tried their best to hide this from the public.
  • Apparently it is normal for the males of many liminal species to have a more animal-like appearance, especially in terms of their heads, while female have more human-like heads (notable examples of this are Orcs, Minotaurs and Kobolds).
  • Centaurs aren't the only liminals to have taur-type bodies as Sphinxes and Griffins do too.
  • While there are a lot of female Liminal characters in the manga series, there are only three named male Liminal characters in return with Sebasstian, Flounnder and Wladislaus.
    • If you were to add Leechi, who is half male as a hermaphrodite, there would be four male Liminal characters.
  • Centorea's birth is currently the only known instance in the manga series in which a human fathered a child with a Liminal whose species is not purely female. For this reason it's not known whether it is the norm in such cases that a child from this connection is always a pure Liminal, or whether a hybrid child of Liminal and human could be born, especially if the Liminal parent is the father.
  • As revealed by Doppel in Chapter 78, the Shapeshifter species' perfect morphing ability is actually an exception. Most other shapeshifting Liminals aren't that good at shapeshifting, as they tend to retain some features like eyes or tails that don't change during the transformation.
    • Examples of this statement could be the fact that Kitsune, like Ils Nineta , can transform their bodies but not their clothing.
  • Although there are many avian, arthropod, and reptilian Liminals species, Harpies are currently the only Liminal species officially confirmed to hatch from eggs.
    • Okayado once made an illustration showing that Killer Bees also hatch from eggs, but since this illustration was never included in the canon of the manga series, this detail has not been officially confirmed.
  • The females of larger liminals were said to have larger breasts, whereby Centorea justifies this by saying that larger Liminals like Centaurs need more milk as babies than human children.
  • Most females of flying liminals are rather petite which result in them often having rather small breasts. However there are also exceptions like pegasi, Honey Bees or Killer Bees.
    • Ms Smith claims in Chapter 3 that Harpies developed smaller, petite child-like bodies because they would otherwise be unable to fly, but this claim seems sceptical due to Raptor Harpies, who can fly without any diffilculties even though their bodies are neither small nor petite, and are more resemble the bodies of adult humans.

See Also[]


  1. 1.0 1.1 1.2 Episode 7
  2. 2.0 2.1 2.2 Episode 3
  3. 3.0 3.1 3.2 Episode 8
  4. 4.0 4.1 Episode 12
  5. 5.0 5.1 5.2 Episode 9
  6. 6.0 6.1 6.2 Episode 2
  7. 7.0 7.1 Episode 6
  8. 8.0 8.1 Chapter 49
  9. 9.0 9.1 Episode 10

Items and Terminology
Races ArachneCentaurDevilDragonDragonewtDryadDullahanFairyGhostGrim ReaperHarpyHumanInsectoidKaijuKoboldLamiaLizardfolkMermaidMinotaurMonoeyeOgreOrcSlimeTentacle MonsterU.M.A.VampireVanishing HitchhikerWerewolfYokaiZombieOther Races (Manga)Monster Musume Online Species ListMonster Musume Fantastic Life Species List
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