A 21-year-old female cat beastfolk. Her real name is Sato Yaniko, but her nickname is Yanineko. A heavy smoker who prioritizes cigarettes over everything else. She is a semi-unemployed shut-in who spends her days chain-smoking while reading manga in a filthy room reeking of stale tobacco. She spends most of her money on cigarettes, leading to overdue rent and water shut-offs, and her withdrawal symptoms are severe enough to ruin her work. Lazy, impulsive, and lacking in hygiene and common sense, she performs all sorts of eccentric acts, but she bears no malice and acts peacefully according to her instincts and interests. Despite her beautiful appearance, she is known in the neighborhood as a chimney. She uses a cat-like speech style, ending every sentence with "nya," "nyan," or "nyang." She truly cherishes and tries to protect her younger sister, Imoko. As Yakuneko's high school senior, she was the primary influence that led Yakuneko into becoming a drug offender. While Yakuneko admires Yaniko, she also feels disillusioned by her hopeless behavior, yet regards her as a precious person who supports her when she has nowhere else to turn. She is also close with Hameneko, hanging out together and speaking casually.

A 20-year-old female beastfolk. Her real name is Etsushimaru Yakuko, but her nickname is Yakuneko. A kind junior who follows Yanineko and calls her "Senior," but she is a cat with a sinful past she cannot speak of. She is a cat beastfolk living in the beastfolk house and is an ex-convict who served time for drug offenses. Originally a diligent model student, she fell into delinquency due to severe domestic violence, family discord, and Yanineko's influence. Currently, she struggles with social life due to her criminal record and suffers from low self-esteem. She admires Yanineko as a senior but is disillusioned by her chaotic behavior; they share a close relationship where they rely on each other. She views the landlord as a father figure and spiritual supporter, and Tatsuro also helps her with daily life. She and Hameneko have been close "frenemies" since high school. Surprisingly, she is skilled at fighting and handiwork, and she has a warm side, looking after those who are worse off than her.

A female beastfolk. Real name is Yuruhuwa Hameko, nickname is Hameneko. A gamer who enjoys fighting games and a streamer who broadcasts on the Hame Channel. Yakuneko's high school classmate and best friend. She is a passionate fighting game YouTuber/streamer who even broadcasts outdoors. She acts cute on stream, but in reality, she is short-tempered, easily triggered, and so competitive that she loses her mind when she loses a match. In high school, she was a gloomy loner, but she became bright thanks to Yakuneko's help. She is called the "Toilet Fairy" because she frequently wets herself, and she is currently in a frenemy relationship with Yakuneko where they tease each other. She smokes e-cigarettes and cherishes her gaming equipment dearly.

A female beastfolk. Real name is Nishi Kaoruko, nickname is Kansaineko. She is a beauty and a fashionista as long as she stays quiet. She is greedy for laughs, but her skills don't keep up. The origin of her nickname is, of course, Kansai. She uses the Kansai dialect and is ambitious about comedy. She is the most normal resident of the beastfolk house; a university student who excels in looks, fashion, makeup, and ability. She is a heavy smoker and a beauty who speaks in Kansai-ben. She has a huge desire to be funny, but her sense of humor is the worst, often ruining the mood. She is usually perfect, but her true nature comes out when she gets drunk. She is Yanineko's drinking buddy. She is best friends with Aruneko at the same university. Originally, she was a year behind, but due to Aruneko repeating years, they are now in the same grade. She often stops by Aruneko's house to check on her.

A 24-year-old female beastfolk. Real name is Sakai Aruko, nickname is Aruneko. She looks like an elementary schooler but is strictly a university student who uses the masculine pronoun "boku" (has repeated two years). A massive heavy drinker who spends her days soaked in alcohol, often with trembling fingertips. She is the oldest resident of the beastfolk house and a 3rd-year university student, but has failed to graduate due to credits. Due to severe alcoholism, she is always drunk, and her withdrawal symptoms and health problems are serious. She frequently gets lost and drifts away while intoxicated. Despite her youthful face and small stature, she lacks a sense of hygiene. Surprisingly, she is a non-smoker. She doesn't mind Yanineko smoking and visits often because she can get free drinks; she and Yanineko get along comfortably, with Aruneko even making cocktails for her. She attends the same university as Kansaineko and shares a special bond with her, as Kansaineko helps her whenever she is in danger.

A 32-year-old human female. Real name is Tatsuno Saori. The only human living in the same apartment as Yanineko. A professional erotica manga artist and a heavy smoker. Her nickname is Mang-kas (Manga Trash). She isn't exactly a best-selling artist, but she has a large chest. She uses Yanineko or Yanineko's friends as assistants or uses them as material for her manga. She appears occasionally as Yanineko's acquaintance. She is also quite the heavy smoker.

A 45-year-old human male. Real name is Otani Ouya. The bald, chubby landlord who manages the apartment where Yanineko and the others live. He looks scary, but he is a very kind and sensible person with deep consideration for others. He possesses a gentle heart and a "not-so-gentle" physical attribute simultaneously.