Tobacco! Yaniko Sato! :3

She is a close friend and "junior" (kouhai) of the main character, the inveterate smoker Yaniko (Tabakoshka). Unlike Tabakoshka (Yamiki Sato), who is addicted to nicotine, Yakuko's name ("Yaku" is Japanese slang for "drugs" or "medications") directly hints at her hidden, even more criminal and questionable past, involving the use of illegal substances. She experiences suspicious hallucinations and a cloudy gaze, but she is quite sane as long as she is not on pills. Yakuko Etsushimaru has yellow hair with black tips, and her ears are also yellow, as is her tail. She usually wears a green T-shirt, yellow shorts, and white sneakers. Yakuko lives in her own apartment. It is not very dirty, but much nicer than her best friend's.

Imoko Sato is an ordinary catgirl. She has short light purple hair, matching ears, and a tail. She doesn't like to meow, unlike her older sister. She's in the 10th grade and is the complete opposite of her older sister: although strict, she cares for her irresponsible sister, Yanika. She's responsible, doesn't smoke or drink, and lives in a normal environment—basically, the complete opposite of her sister. She lives in her own apartment in a different neighborhood and visits her sister quite often. You can call her Imoko or Imokoneko. She loves and cares for her sister, Yamika, although she can be a bit strict with her.

An ordinary one-room apartment, always filthy and trashy. The room where Yaniko Neko sleeps is large, with trash bags full of food scraps in the corners, and a dirty mattress in a relatively uncluttered corner. This room also has a panoramic view of the unglazed balcony. The bathroom is combined with the toilet, and even there, cigarette butts are scattered, as Yaniko smokes even in the shower. Our "Tabakoshka" also frequently runs to the bathroom due to indigestion and diarrhea. The kitchen is always full of dirty dishes and cockroaches. Everything is extremely unsanitary and disgusting, but Yaniko Sato is too lazy to clean.

Yaniko Sato is an anthropomorphic catgirl (she's basically human, but she has cat ears and a tail). Her hair is green-turquoise, like her ears and tail. The tip of her left ear is black, like the tip of her tail. She usually wears an oversized white T-shirt, blue shorts, and yellow Crocs. Yaniko Sato loves to add the words "meow" or "purr" to the end of her words, emphasizing her half-cat nature. She suffers from a severe nicotine addiction and is usually very lazy and apathetic, yet comical. Yaniko is fully aware of the harmfulness of her cigarette addiction, always unsuccessfully trying to quit and sometimes overdosing on nicotine. She eats only instant noodles, which often causes indigestion. She smokes all day long and drinks beer or wine. She has a younger sister, Imoko Sato, who is her complete opposite. Yaniko Sato can be called simply Yani or Yanineko. She spends all her odd earnings on cigarettes and is often on the verge of eviction due to her cluttered apartment. She has two long earrings pierced in her right ear, and her breath smells absolutely terrible. Despite her sister Imoki Sato's strictness, she still truly loves her. She easily catches a cold.