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Vampires (吸血鬼, Kyūketsuki) are a humanoid Liminal 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 one, there is usually no risk of turning into a vampire via their bite, as the victim needs to already be near death or have a compromised immune system for the virus to work). For unclear reasons, Vampires now exist in almost near-extinction.


Long before the Cultural Exchange Between Species Bill was created, Vampires were considered dangerous due to their naturally blood-based diet and the Vampire Virus (which can turn both humans and some Liminal species into Vampires) and where therefore widely feared. However, the infection rate by the Virus is very low and although the victim is transformed into a Vampire, no fangs or wings grow. This gave rise to the theory that modern Vampires may just be bat-like Liminal species that have been transformed by a now extinct species of original Vampires. However, this theory is just a conjecture with no more evidence to support it.

While Vampires were at one time more numerous, their population decreased dramatically over time, so that they are now on the verge of extinction. Ms. Smith states that the reasons for this would be the weak effectiveness of the Vampire Virus, but this can only be superficially regarded as a reason, as Vampires can also reproduce naturally.

Because of their status as a dangerous species, Vampires have been banned from the Cultural Exchange Bill, and as such, are prohibited from entering Japan. Still there are some smugglers like Mr. President who illegally smuggled Vampires into Japan. It is unknown how the government responded to such violations in general, but at least Curie was apparently allowed to stay in Japan permanently. Aluca also came to Japan regulary via the Exchange Program, which suggests that by the time of Volume 18, Vampires are now allowed to participate in the program.

Physiological Attributes[]

Kyurii Secrets English
  • Bad sight: Vampire eyes are thought to have night vision, but this may be untrue, a vampire's eyesight is actually quite poor.
  • Ultrasonic Waves: Like bats, Vampires oriented themselves at night with ultrasonic waves.
  • Ears: Vampires have pointy ears, and their ears have very sensitive hearing. They can even hear ultrasonic waves, but because their hearing is so acute vampires tend to not like loud environments.
  • Wings: Vampires have bat like wings instead of hands, allowing them to be able to fly.
  • Digestive system: Vampires have a digestive system that is underdeveloped so they can only digest liquids, so they have to drink blood to get nourishment.
  • Vampire Virus: A Vampire can spread the Vampire-Virus through a bite, which can also turn their victim into a Vampire, although the actual viral transmission rate is actually extremely low. However, it should still be taken into account that Vampires can spread the virus not only through their saliva, but also through their mucous membranes, so that any direct contact with a Vampire can pose a low but still potential risk. Although the infected victim is considered a "Vampire", they do not grow wings or fangs and essentially they only become a carrier of the virus, so the claim that the victim is "turned into" a Vampire is rather inaccurate. As indicated by Wladislaus in Chapter 51, the Vampire Virus can infect not only humans but also certain Liminal species, such as Devils, Lamia and Harpies.
    • While the initial puncture of skin may be painful, a vampire's bite will stimulate the victim's pleasure receptors as the vampire begins feeding, with the stimulation increasing as the feeding continue, as seen in chapter 51.
  • Bones: Much like bats, Vampires have a very thin skeletal structure as an adaptation to flight, but this also caused their bones to be slightly weaker than the extremely strong bones of bird-like Liminal species like Harpies.
  • Weaknesses: Vampires have a weakness to sunlight and UV light and are usually allergic to garlic and silver.

Other Blood-consuming Liminals[]


Main article: Insectoid
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Empusa are a demihuman race with mantoid attributes. Appearing in Grecian myth, the Empusa were said to be servants of the goddess Hecate who were charged by the goddess to guard specific roads from travelers. According to mythological texts, the Empusa feasted by seducing young men and, as they slept, drank their lover's blood and ate their lover's flesh. It is unknown whether this is actually true.

What is confirmed is that Empusa actually possess a timid nature, and will run and hide at the sound of insults.

Lamprey Mermaid[]

Main article: Mermaid
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 (lamprey mermaids have similar features, with spots under their eyes and circular gill slits on their torso). Folklore in some other countries include the lamprey's nostrils in the count, calling them "Nine-eyed Eels" instead.



Leeches are a pseudohuman species of invertebrate beings that have evolved to possess forms somewhat similar to humanoids. Similar to their animal counterparts, leeches are humanoid Annelids and hermaphrodites (possessing both a functional 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.


Main article: Insectoid

Mosquitos are an insectoid demihuman 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 enjoy blood, they mainly subsist on honey, nectar and fruit juices.

Vampire Bat[]

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The Vampire Bat is a humanoid species that shares a lot of similarities with bats and the Vampire species.

Although sharing the vampire's aversion to sunlight and their possession of fangs for sucking the blood of other beings, Vampire Bats can survive on other liquids aside from blood, possess shorter wings and fangs, and are generally more timid in nature than their predatory cousins (although they are thought to be more confident in environments that lack sunlight). And just like Vampires, they possess wings as hands.


In the Manga[]

In the Game[]



  • Although Vampires are undead in most legends, this does not seem to apply to the Vampires in Monster Musume. Nowhere is this mentioned in the manga series and the fact that Wladislaus died of a disease shows that they are actually living beings as the undead are immune to disease.
  • Ms. Smith states in Chapter 50 that the reason why the number of Vampires has steadily decreased is due to the very low infection rate of the Vampire Virus. This seems unlikely, however, as Curie shows that Vampires in Monster Musume can also reproduce naturally and that it is therefore not absolutely necessary to create a new Vampire using the Virus.
  • As Ms Smith explains in Chapter 50, Vampires view crosses as a cultural taboo, although they seem to like upside-down crosses. This cultural taboo is probably due to the fact that Vampires are often regarded as demonic creatures and therefore in many legends they cannot enter sacred grounds such as churches, the symbol of which is the cross. However, upside-down crosses are considered a mockery or rejection of the church in Christianity, which is why Vampires like them since they also reject the church.
  • While it is true that Vampires feed primarily on blood, in Chapter 59.5 Curie also drinks a tomato juice and later a smoothie mixed by Yatsume. This shows that a Vampire can also consume other liquids without problems.
  • Although it is stated in Volume 12 that Vampires in Monster Musume share their species' general weakness to the sun light and that it is "very dangerous" to them, in Volume 19, Aluca is active during the day, seemingly without this having any negative effect on her. It is possible that Okayado had to ignore this for the plot of the chapters, or that he later toned down the Vampires' vulnerability to sunlight because it allowed him to avoid the need for later chapters, in which Vampires appeared, to take place at night.
    • Alternatively, it’s possible that Curie has a weaker constitution than Aluca due to the former being severely malnourished at the time.
    • Another possibility is that Aluca wears sunscreen to protect her skin.
  • The vampires' vulnerabilities to sunlight and UV rays are similar to people born with the porphyria condition which might be the reason that gives rise to myths and legends about them.
  • While sunlight, garlic, and crosses are common weaknesses of Vampires in almost all stories and myths, the weakness of Vampires in Monster Musume to silver is unusually as it is usually Werewolves that are vulnerable to silver. There are some stories where silver is actually considered a weakness of Vampires, although this is because many people used to confuse the weaknesses of Werewolves and Vampires.

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