|Gallery | Quotes | Relationship|
|Voiced by||Sora Amamiya|
Allison Sumrall (English Voice)
|Age||Unknown, but same as Papi|
|Birthday||October 31st (Scorpio)|
|Height||~173cm (~5'8")? height can vary depending on how high she stands on her tail|
Shrine Maiden (since ch.43)
Miia (ミーア, Mīa) is a Lamia (Snake Girl) and the first girl to be placed with Kurusu as part of the Cultural Exchange Between Species Bill. After experiencing Kurusu's kindness firsthand, she has fallen head over tail in love with him to the point of trying to seduce him at almost every opportunity or otherwise jealously coveting his attention. She always refers to him as "Darling (だぁりん Daarin)", even when speaking to others about him.
Miia is a beautiful Lamia with long bright red hair and amber eyes with slitted snake pupils. Her ears are large, pointy and red, and she has fangs and a long tongue. She also has small scales on her cheeks and wears a yellow 'D' clip on each side of her head (from the front the clips resemble a snake's eyes while her hair acts as the fangs). She also has large breasts and a curvy figure (upper body-half).
Her most noticeable physical trait is her long, red snake tail. Her full length is said to be 8 meters (26 feet), suggesting her tail is approximately 7 meters (22 feet) long.
The clothes she wears changes throughout the series but she usually wears a miniskirt along with different types of tops.
As an exchange student from a race distinguished most by its seductiveness and high sex drive, Miia possesses a very lascivious personality. Initially, Miia is introduced as a cheerful yet ditsy girl whose transgressions of human norms (i.e: sneaking into Kimihito's bed and nearly strangling him in order to stay warm) seem attributable to mere naivete. However, as the series progresses, Miia increasingly reveals herself to be a calculating and possessive individual whose repeated transgressions against humanity's standards of behaviour are rooted in a single-minded obsession to make Kimihito hers at all costs.
Of all the girls at Kimihito's residence, Miia is by far the most domineering and hot-tempered. Whenever she feels that her claim on Kimihito is threatened, she is quick to lash out at the other girls and even Kimihito himself. Additionally, despite her flirtatious nature, she often becomes shy and embarrassed when Kimihito accidentally does something perverted towards her before (hypocritically) calling him a pervert or idiot and striking him with her tail.
Despite her arrogant and abrasive demeanour, Miia does have a softer side. She has proven that her romantic feelings towards Kimihito are sincere and not the mere product of self-centered lust. While often injuring Kimihito during the course of "hugging" him with her tail and fighting over him with the other girls, Miia is also very protective of him and regularly puts herself in harm's way when she fears his life is at risk. Additionally, despite viewing them as rivals for Kimihito‘s affections, it is revealed that she cares deeply for the other girls at Kimihito’s residence.
Miia seems to have apotemnophobia, a fear of amputations, as she gets terrified to the point of losing consciousness whenever she sees Lala's head and body separated. In the anime, she becomes quite disturbed when Zombina sews her forearm back on in front of her.
As a result of her snake nature Miia loves eating eggs. Because of this, Kimihito used to make eggs for her every morning.
Skills and Traits
- Cooking: Miia is currently being taught to cook by Kimihito, she herself claiming that it would help her look better as a wife in his eyes. However, her cooking is outright terrible and on at least two occasions has given people food poisoning. Suu, due to her unique biology, is the only person who can eat it without any ill effects. Because of this, Kimihito has banned her from cooking until she reads a cookbook. The reason for her horrible food is that being a carnivore, she has 1/25 - 1/50 sense of taste sensitivity that humans have. Therefore even when she taste tests what she makes, she can't tell if it's bad or not.
- As Monster Musume: Monster Girls on the Job! revealed, Miia's cooking had improved with her training, with the result that her meals were mostly edible, but she still hadn't shed her tendency to over-season everything.
- Lamia physiology
- Cold Blooded: Because she is reptilian, she is a poikilotherm. If her environment isn't warm enough, her bodily functions will slow down, and she will feel the need to hibernate. 
- Skin Shedding: At certain periods in her life, like a normal snake, she will shed the skin on her tail, which according to her is more embarrassing than being seen naked.
- Snake Tail: Her most noticeable trait, her tail, is a very strong and dexterous part of her body. It is strong enough to crush metal pipes without her noticing (when under the effect of a Full Moon), and accidentally dislocate Kimihito's shoulder by strangling him. She can also coil up her tail and use it as a spring to launch herself great distances. Because of her tail, Miia is also skilled at climbing trees. 
- Erogenous zone: The tip of her tail is shown to be a very sensitive erogenous zone to the point that touching it repeatedly can cause her to orgasm.
- Inhuman Durability: Aside from being temporarily stunned, Miia recieved no injuries from a Centaur stampeding over her.
- Martial Arts Training: When Miia expects to go into a fight, she takes on martial arts stance, suggesting she may have some self defense training.
- Swimming: Miia is also a good swimmer, and can even swim backwards. This, combined with her ability to use her tail as a spring, allows her to keep up with a mermaid, who can reach top speeds of 50km/hr. However, since she is cold-blooded, cold water will affect her body.
- Toned Waist: As Lamias twist their waists as they slither, they have a firm look.
Skills and Statistics
Main: Miia/Game Stats
- Hair-Clips: Miia owns a pair of hair-clips in the shape of a capital D. They resemble the eyes of a pit viper.
- Cold Spray: Miia uses it like a Pepper Spray against her mother.
- Computer and internet: Miia uses it to buy her clothes from "mamazon"(amazon).
- Independent Activity Pass: Allows Miia to roam around in public without supervision from Kimihito.
Miia is placed with Kimihito as part of the "Cultural Exchange Between Species Bill" by Smith, despite his not actually being a part of the program. At first she thought that he would be afraid of her, since she was half-snake. However, his kindness and effort into making sure she was happy (to the point of remodeling many parts of his home for her convenience) quickly impresses her.
As time passes, Miia eventually falls in love with him. Although Kimihito appears to feel the same way, there is a stipulation in the exchange program that prohibits interbreeding between humans and Liminals. Violating this law would result in Kimihito being severely punished and Miia being deported. However, this didn't stop Miia from making advances on him whenever she got the chance. With the moving in of other houseguests, this severely curbed the chances of the two being alone together and in private.
Later on when Papi becomes a resident of the house, Miia thinks that she was just a child and doesnt believe she had to worry about any competition. Upon finding out that Papi was as old as she is, she quickly changes her attitude and warns Papi to "keep her hands off him".
Later, Cerea becomes the third resident of the house, much to Miia's dismay. She then tries to assert her dominance over the group by claiming that as the first resident of the house she has rights over Kimihito. This results in a fight breaking out between the three in the park. Ms.Smith quickly gets involved and tries to shoot all three with tranquilizers in order to avoid collateral damage, and prevent any injury between the three. Kimihito takes all three shots unknowingly, and Miia and the others later apologize for their behavior.
At one point she tries to cook for Kimihito, and is interrupted by her body beginning to shed. He is forced to peel it off for her, and she tries to reward him with her food. Unfortunately, Papi and Cera were made very sick due to her simply guessing on how to make the food instead of reading from a cookbook. Later on, Kimihito starts teaching her how cook properly, only for them to be interrupted by a Slime Girl springing out of the pot, temporarily knocking Miia out. After Kimihito reverts her to a more harmless state, she, Cerea, and Kimihito were left puzzled on what to do with her. 
Later on, the Slime Girl (now named Suu) continues to cause trouble around the house by accidentally adsorbing many objects and getting slime everywhere, to dismay of the troupe. While they are angry at her, they are surprised when Suu slowly learns to talk. The group then starts talking about bringing her to Ms. Smith. When Miia points out that Suu probably didn't come here legally (and she could be put in prison), Papi quickly leaves with her. Miia and Cerea try to go after her, but are stopped by the arrival of Ms. Smith.
Later on, Miia talks with Kimihito on the phone about Suu staying with them. She and Cerea are initially hesitant about Suu staying, but they quickly change their minds when Kimihito tells them to think of her as a child. This causes Miia to fantasize about having a baby with someday. When Kurusu arrives home, Miia tells him a little too late that Ms. Smith has arrived, culminating in the encounter with Ms. Smith they had wanted to avoid. 
Almost immediately, Miia, Cerea, and Papi start panicking over what Ms. Smith would do to Suu, while Kurusu was too busy with the remodeling of his home to pay too much attention. Despite him thinking the remodeling was for Suu, the two of them took her and hid in the park, all the while hiding from what they thought were Smith's "minions" (in reality they were Meroune's escorts). She, along Centorea, witnessed Suu "molest" Papi for the first time, after Papi had accidentally dropped a bottle of water on to herself that she was gonna give to Suu, who was thirsty after being dehydrated to "pot size". She and Centorea would also fall for the same treatmeant. After Kimihito managed to subdue Suu, all of them went back home where Kimihito told them that Ms. Smith sent construction agents to remodel the house, not to take away Suu, much to her and Centorea's chagrin.
Miia would initially be extremely hostile towards Meroune, revealing she did not see the 3 other girls as any real competition at this point in time. Trying to turn her fellow exchange students against the mermaid. However, the other girls were quickly swayed over by Mero's calm attitude and regal charm. This made Miia desperate, going as far to 'play' with Suu in an effort to mimic Mero's slime to divert Kimihito's attention. Kimihito not catching on to her attempts. Eventually, the mermaid and lamia have an actual discussion after the former saves the latter from drowning (Miia having thought Mero was trying to drown Kimihito). Mero clarifies that she does not want to be the winner of Kimihito's affections, stating she wants a love story akin to 'The Little Mermaid'., in that she instead wants unrequited feelings and an affair with him.
Later, during her initial encounters with Rachnera, Miia would be extremely wary of the spider, the latter paying the former little to no mind. The two would butt heads up until Kimihito goes on a date with Smith. Though the girls would all end up spying on them, Miia would be the most persistent, making sure to tail them the entire date, up until her and Rachnera would be pulled into a hotel room and held at gunpoint by M.O.N. . Smith reveals that her 'date' with Kimihito was merely a lure to bring out 'D', who had sent a death threat note, blackmailing Kimihito to not marry. This would lead to each of the girls going on dates with him in an effort to find the perpetrator behind the letter.
During her 'date' with Kimihito, Mero tags along, getting the two of them passes through the aquarium, while being under the 'guard' of Tionishia (who was paying more attention to the dolphins than the girls). Throughout the date, Mero is constantly interrupting Miia with random fish trivia, Kimihito doing nothing to stop it. The final straw on this 'date' is when Mero (accidentally) gets Kimihito's undivided attention. Leading to Miia leaving in frustration, where she encounters Draco. In an attempt to seduce Miia, Draco repeatedly tries to get Miia to point out Kimihito's faults, Miia instead defending him each time. The dragonewt, fed up with this, reveals her wings and tries to take Miia by force, the lamia being rescued by the combined efforts of Kimihito and Mero.
- Main article: Lamia
The Lamia (ラミア族 Ramia-zoku?) are a reptilian liminal race with the upper body of a human and the lower body of a snake. A mono-gendered (female) demi-human race, Lamias are predatory carnivores that form tribal villages on the outskirts of desert oasis, their serpentine tails are powerful enough to bend steel.
- Her name ("Miia") is derived from her species name (Lamia), only if given an elongation kana. In chapter 10, her romanized name is shown to be "Meer" (which sounds "Miia" in non-rhotic accents), but that didn't catch on even in the official translation, so it was changed.
- Miia loves eating eggs. Before the other house guests arrived, Kimihito used to cook her eggs every day. Lately she's been enjoying eggs in Oden.
- In her youth, she enjoyed reading human fairy tales, and fantasized about being carried in the arms of a prince (Kurusu in this case). She was also quite shy.
- According to herself, Miia's waist is her most attractive physical trait.
- Miia has several traits similar to other anime/manga characters:
- The way she refers to Kurusu as "Daarin (だぁりん, Darling)" is very similar to how Lum refers to Ataru as "Dārin (ダーリン, Darling)" in Urusei Yatsura.
- The tip of Miia's tail is very sensitive, much like Lala from To LOVE-Ru
- Miia somewhat resembles Chizuru Minamoto from Kanokon in terms of personality, horrible cooking skills, and their desperate attempts to have sex with their lover.
- Attributing to her brash, careless and reckless behavior, Miia is arguably the most dangerous and hazardous of the home stays, as her obsessive affection for Kimihito has caused him very serious injuries in the past, and actually almost killed him on one occasion.
- In Chapter 10, she wears a military uniform, an eyepatch, and a beret with a FOX emblem, a clear shoutout to the Metal Gear franchise, specifically the character Big Boss, the protagonist in Metal Gear Solid 3: Snake Eater (whose original code name was Naked Snake), Metal Gear Solid: Portable Ops, Metal Gear Solid: Peace Walker and the Metal Gear Solid V games Ground Zeroes and The Phantom Pain.
- Later in Chapter 18, Miia dresses as Solid Snake and hides under a cardboard box (both of which being a shapeshifted Suu) while spying on Kurusu and Smith on a supposed "date".
- Chapter 27 reveals that Miia was sent into the Exchange program in order to find a communal husband for her tribe, and the very first to do so. Her mother later reveals that there are others in the tribe getting ready to do what Miia was sent for. The Lamia tribes traditionally procreate by kidnapping human men and forcing them into orgies with an entire village. However, since the enactment of the Interspecies Laws, this behavior has since became illegal, and the tribes have gotten a one-time warning to not repeat it.
- Due to this tradition, Miia has no idea who her father is. This doesn't bother her as it's simply a fact of her culture.
- It is possible that Miia has many half-sisters back home, as well aunts, the half-sisters of her mother.
- Miia likes to shop online for clothes, but tends to buy them too small. Kurusu then does alterations on them to fit her.
- On Twitter, the writer of the series drew Miia cosplaying as Elizabeth Liones from the manga Seven Deadly Sins, a previous role of the voice actress.
- In Chapter 1, Miia had human-like ears but this was very conspicuous.
- Profile Stickers and MonMusu Anime Twitter account revealed that her Birthday is October 31st.
- Miia and Centorea are currently the only girls among those living at the Kurusu House who have permission to leave the house without supervision. Miia due to her having a Independent Activity Pass, Centorea due to special privileges (as seen in chapter 4 and the fact that she takes morning runs).
- Kurusu mentions that he once made her a tail warmer that was 7 meters long. Therefore, it can be inferred that her tail is 7 meters long as well.
- She is confirmed to be a virgin in chapters 1 and 2.