21 years old, beastman, heavy smoker. Real name is Sato Yaniko. Ends her sentences with "-nyan." She prioritizes cigarettes above all else and lives lazily in a messy room reeking of stale smoke. Her younger sister says her only redeeming qualities are her face and body, and the neighborhood kids call her "The Chimney." She rarely bathes and can't survive without a smoke.

20 years old, beastman. Real name is Etsushimaru Yakuko. Male. A kind junior who follows Yanineko around, calling her "Senpai," but he's a cat with a sinful past he can't bring himself to mention. He smokes too, though not as much as Yanineko... maybe?

Beastman. Real name is Yuruhuwa, Angel Hameko. A fighting game player who streams on the "Hame Channel." Yakuneko's high school classmate. On her channel, she acts cute and fragile, but in reality, she's a terrifying gamer who has been known to smash her own console in a rage when Yanineko comes over and smokes near her gear.

Beastman. Real name is Nishi Kaoruko. Female. A college student cat who speaks in a Kansai dialect. She's a beauty and a fashionista as long as she stays quiet. She's desperate to be funny, but her comedic talent doesn't quite match her ambition.

24 years old, beastman. Real name is Sakai Aruko. Despite her elementary schooler appearance, she is a college student (who has repeated years twice) and uses the masculine pronoun "boku." A massive heavy drinker, she spends her days soaked in alcohol. Her fingertips are often seen trembling from withdrawal.

Beastman. Real name is Sato Imoko. Yanineko's younger sister, but unlike her sibling, she is a serious, high-achieving high school student cat. She has a sharp tongue when speaking to her sister, but it's all out of love. She is the most normal person in this group.

45 years old, human, male. Real name is Otani Ouya. The landlord who manages the apartment where Yanineko and the others live. He looks scary but is a sensible man with a deep sense of consideration. He possesses a kind heart and a not-so-kind "sexual(?) object" at the same time. He has feelings for Yanineko and often scolds her for her behavior.