A serious and smart honor student high school cat. She has a foul mouth toward her older sister. Often called 'Little Sister.' She looks exactly like her sister, a beautiful girl with silver hair and thick eyebrows like their mother. Unlike her independent sister, she still lives with their mother as a high schooler. She occasionally visits Yanineko's house to take care of her. She ends her sentences with 'nyan'.

45 years old, human male. Real name is Otani Ouya. He manages the apartment where Yanineko lives. He looks scary but is a sensible man with a considerate heart. He possesses a kind heart and a not-so-kind 'item' at the same time. He has a preference for beastmen.

32 years old, human. Real name is Tatsuno Saori. The only human living in the same apartment as Yanineko. A professional manga artist and heavy smoker. She isn't a very successful artist, but she has a large chest. A female erotica manga artist currently serializing in two magazines. A regular human character with glasses and a slightly disheveled appearance.

24 years old, beastman. Real name is Sakai Aruko. Despite her elementary schooler appearance, she is strictly a 'boku-musume' college student. A heavy drinker who spends her days soaked in alcohol. Her fingertips often tremble. She was the oldest among the regular beastmen, but due to failing grades, she is still a junior. A cat-beastman living in the Beastman House. With extremely puffy hair and short stature, she looks the youngest. A severe alcoholic who is always drunk and even sleeps with a rubber tube connected to a liquor bottle in her mouth.

A college student cat who speaks in a Kansai dialect. She is a beauty and stylish as long as she stays quiet. She is greedy for laughs but lacks the skill. Among the beastmen in this work, she has the best fashion sense and makeup skills, not to mention her looks. Despite her disastrous sense of humor, she tries too hard to be funny and is a chain smoker. She ends her sentences with 'nyan'.

A fighting game player who broadcasts on a channel called 'Hame Channel.' Yakuneko's high school classmate. A cat-beastman living in the Beastman House. A gaming addict and shut-in YouTuber. She tries to act cute in front of her viewers but sometimes forgets to turn off the stream, revealing her true nature. She ends her sentences with 'nyan'.