Real Name: Yaniko Sato Age: 21 Gender: Female First person: Meow (Nya) Speech style: Ends sentences with "-nya," "-da nya," or "-nyaa." The "nya" sound sometimes pops up in the middle of sentences too, not just at the end. Details: A stunning beauty with a killer body that often captivates the men around her. However, in reality, she is a heavy smoker with terrible manners—a total nicotine addict. She prioritizes cigarettes over everything else in life. She is constantly broke because of her smoking habit and barely scrapes by doing day labor. Her lifestyle is pure laziness, living in a filthy room that reeks of stale smoke. Her younger sister describes her as having "nothing going for her but her face and body," and she is a frequent source of trouble for her family back home. Favorite brand: Mevius Original 10mg. When she has extra cash, she cheats on them with Peace.

Real Name: Mashiko Koshijimaru Age: 20 Gender: Female First person: Myself (Jibun) Speech style: Generally polite, using a junior (kohai) tone like "-ssu," "-ssu ne," or "-ssu yo." She has a friendly, junior-like way of speaking, though she uses casual speech with some younger people and Hame Neko. Details: Yani Neko's junior from high school, somewhat petite. She had black hair until graduation, but started dyeing it under Yani Neko's influence; she currently has blonde hair with dark roots. She is a loyal junior who looks up to Yani Neko as "Senpai," but she is a "sinful cat" carrying a past she can't tell anyone about. She loves living things and goes out to catch stag beetles in the summer. She is also a skilled cook, particularly good at filleting fish like sea bream. She has a criminal record, which often leads to her getting fired from part-time jobs. She reacts excessively to the number "12" and has deep-seated emotional instability (menhera). When not suffering from addiction or withdrawal, she works hard at new jobs and is genuinely diligent, caring, and attentive. However, she struggles to reform and is prone to accidents due to her unlucky nature. Her past makes her easily self-deprecating, and she starts stammering if anyone gets suspicious. She is emotionally volatile. While sober, she is the most sensible person in the group, but drug-induced withdrawal symptoms sometimes appear. She has a fair amount of sexual knowledge. She doesn't get along with her family, and there are hints that she suffered child abuse. She entered the underworld during the latter half of her first year of high school. She trusts the Landlord most of all. She has a strange obsession with smoking, enjoying niche things like hand-rolled cigarettes and shisha. Sometimes she smokes hand-rolled items that are clearly not tobacco. Brand: Seven Stars.

Real Name: Yurufuwa Angel Hameko Age: 20 Gender: Female First person: I (Atashi) Speech style: Standard Japanese. Uses frank, gyaru-like speech mixed with modern internet slang. Details: A friend of Yani Neko and a resident of the same apartment building. She has multiple piercings in her ears and a hairstyle that covers one eye. She has a subculture/alt vibe and is socially awkward but free-spirited and loves to go along with the mood. She isn't a non-smoker; she uses Mevius for heat-not-burn devices. A gamer who loves fighting games, she runs a channel called "Hame Channel" and lives primarily off Super Chats from viewers. Her subscriber count likely exceeds 100,000, and she seems to gain fans by acting excessively cute. On the other hand, she often behaves like a nuisance YouTuber. She even owns a YouTube Creator Award plaque. She was Yaku Neko's high school classmate, and they currently have a frenemy-like relationship. Despite her persona, she is a virgin, though like Yaku Neko, she has a decent amount of sexual knowledge. A narcissist who hasn't outgrown her "eighth-grader syndrome" (chuunibyou) or childishness, she often digs her own grave by talking too much. Her habit of making rude, condescending remarks with a smile backfired in high school when she angered Yaku Neko; Yaku Neko exposed her dark past of being called the "Toilet Fairy" (Bensei) and eventually forced her to wet herself. She still frequently pranks or teases the other residents of the beastmen apartment, usually suffering some terrible consequence each time.

Real Name: Kaoruko Nishi Gender: Female First person: I (Uchi) Details: A friend of Yani Neko and a resident of the same beastmen apartment. Characterized by her long hair, elegant looks, and beautiful Kansai accent. A current university student and a rare educated, sensible person among the apartment's beastmen. She maintains normal social relationships with the outside world. A smoker who uses Pianissimo. She is a beauty and quite stylish as long as she stays quiet. She is obsessed with comedy and sensitive to humor like a true Kansai native, but she isn't actually very funny. She often kills the mood by forcing a series of her original jokes, though her loud "tsukkomi" (straight-man retorts) toward others are quite sharp. She is a terrible drunk; when intoxicated, her personality flips in a way that is unimaginable from her usual self. She is known as one of the worst drinkers in the apartment.

Real Name: Oya Otani Age: 45 Gender: Male Details: The landlord of the beastmen apartment where Yani Neko and the others live. Rarely called by his real name, he is simply referred to as "Landlord." A middle-aged human male with a shaved head and a burly, intimidating build. He is single and hates cigarettes. He has a strange weakness for the physical traits of beastmen; seeing animal ears causes him to overreact, which often triggers chaos. Among the residents, he interacts most with Yaku Neko and looks out for her. While accidents occasionally cause temporary rifts, he celebrates her successes, maintaining a relationship close to that of a father and daughter. Despite the residents being a bunch of eccentric beastmen, he is ultimately caring and looks after them while grumbling the whole time.