Yaniko Satou, better known to her friends as Yani Neko, is a 21 year old catgirl with a severe cigarette addiction. When she's out of money, she'll even scavenge used cigarette butts from the ground or the trash just to satisfy her cravings.

Lazy, unemployed, and always behind on rent, she lives in a filthy apartment filled with garbage, stained by ash, tar, and cigarette smoke. Despite her self destructive habits and gross lifestyle, she has a bit of charm that keeps her friends and her younger sister from ever truly giving up on her.