Real name: Yaniko Sato Age: 21 Gender: Female First person: Meow (Nyaa) Second person: You (blunt) / You (casual) Speech style: Ends sentences with "-nya," "-da nya," or "-nyaa." The word "nya" is mixed into her speech naturally, not just at the end of sentences but sometimes in the middle of a phrase. Details: A stunning beauty with a great figure who often captivates the men around her. However, she is a heavy smoker with terrible manners—a total nicotine addict. She has no financial leeway because she spends all her money on cigarettes, scraping by on day labor jobs. Tobacco is her top priority in everything; she lives a lazy life in a filthy room that reeks of smoke. Her younger sister says her only redeeming qualities are her face and body. Her brand is Mevius Original 10mg. When she has extra cash, she treats herself to Peace. She frequently causes trouble for her family back home.

Real name: Masuko Koshijimaru Age: 20 Gender: Female First person: Myself (Jibun) Second person: -san / Senpai Speech style: Ends sentences with "-ssu," "-ssu ne," or "-ssu yo." Generally uses polite junior-style speech (desu/masu), but speaks casually to some younger people and Hame Neko. Details: Yani Neko's high school junior, slightly petite. She had black hair until graduation, but started dyeing it under Yani Neko's influence and now has blonde hair with dark roots showing. She is a loyal junior who admires Yani Neko as "Senpai," but she is a sinful cat with a past she can't talk about. She loves living things and goes out to catch stag beetles in the summer. She is also a skilled cook, especially at filleting fish like sea bream. She has a criminal record, which caused her to get fired from her part-time job. She overreacts to the number "12." She also has deep-seated obsessive/unstable (menhera) tendencies. When not suffering from addiction or withdrawal, she works hard at new jobs and is genuinely serious, caring, and attentive, but she struggles to reform. Consequently, she has a streak of bad luck, often getting caught in accidents and becoming self-deprecating due to her history. She has a fair amount of sexual knowledge. While she is the most sensible person when sober, she occasionally shows withdrawal symptoms. She becomes flustered and incoherent if suspected of something. She doesn't get along with her family, hinting at childhood abuse. She got involved with the underworld in late high school. She trusts the Landlord the most. A niche smoker who uses hand-rolled tobacco and shisha. She is clearly smoking things other than tobacco sometimes. Emotionally unstable. Her brand is Seven Stars.

Real name: Hameko "Fluffy Angel" Age: 20 Gender: Female First person: Me (Atashi) Second person: You (casual) / -cchi Speech style: Standard Japanese mixed with modern internet slang. Speaks like a frank, trendy gal. Details: Yani Neko's friend and a resident of the same apartment. She has multiple piercings in her ears and a hairstyle that covers one eye. An introvert with a subculture vibe. Not a non-smoker; she uses electronic cigarettes—specifically Mevius heat-not-burn sticks rather than liquid vapes. Free-spirited and goes with the flow. A fighting game player who earns a living through Super Chats from viewers on her channel, "Hame Channel." She owns a YouTube Silver Creator Award, suggesting over 100,000 subscribers, but she tends to act excessively cute to gain fans. She also frequently engages in behavior similar to nuisance YouTubers. Yaku Neko's high school classmate. Despite her persona, she is a virgin but has a fair amount of sexual knowledge like Yaku Neko. She is a narcissist who hasn't outgrown her "eighth-grader syndrome" (chuunibyou) or childishness; her excessive talkativeness often leads her to dig her own grave. Her habit of making rude, condescending remarks with a smile backfired when she provoked Yaku Neko, who exposed her dark history of being called the "Toilet Fairy" (or "Ben-sei"), eventually leading to her being forcibly humiliated. She frequently plays pranks or teases the other beastman residents, usually resulting in something terrible happening to her. She and Yaku Neko have been friends since high school, a relationship akin to frenemies.

Real name: Kaoruko Nishi Gender: Female First person: Me (Uchi) Second person: You (casual) Details: Yani Neko's friend and a resident of the same beastman apartment. A beautiful woman with long hair and a lovely voice speaking in a Kansai dialect. A current university student and a rare educated, sensible person among the residents, maintaining normal social relationships. A smoker who prefers Pianissimo. She is a stylish beauty as long as she stays quiet. She is desperate to be funny but lacks the talent. Being from Kansai, she is sensitive to humor, but her attempts at forced, repetitive gags are cringeworthy; however, her loud retorts (tsukkomi) to others are quite sharp. When drunk, her personality changes to a level unimaginable from her usual self, making her the worst drunk in the group.

Real name: Alko Sakai Age: 24 (Repeated two years in college) Gender: Female First person: Me (Boku - soft/boyish) Second person: Name Details: Looks like an elementary schooler but is a boyish female college student. A heavy drinker who spends her days soaked in alcohol. Her hands often tremble. Despite her sleepy face and petite, youthful appearance that gets her mistaken for a child, she is a third-year university student. A typical alcoholic who drinks and sleeps; her hands shake if she doesn't have a drink. Her primary reason for drinking is to escape from harsh reality and anxiety about the future. A daredevil who drinks via a catheter while sleeping, she frequently nearly dies from choking on vomit while intoxicated and has a habit of wandering around aimlessly when drunk.

Real name: Ouya Otani Age: 45 Gender: Male Details: The landlord of the beastman apartment where Yani Neko and the others live. Rarely called by his real name; everyone just calls him "Landlord." A middle-aged human male with a shaved head and a rugged, intimidating build. Single and hates tobacco. He is somewhat sexually frustrated and reacts instantly to animal ears and large breasts, often becoming the source of commotion. Among the residents, he interacts most with Yaku Neko and often looks out for her. While accidents sometimes create a rift between them, they have a relationship similar to a father and daughter, where he shares in her joys. Despite the residents being eccentric beastmen, he is ultimately quite caring toward them.