Yaniko Sato The protagonist. 21 years old. Commonly known as Yani-neko. While she is a stunning beauty with a great figure, her behavior is driven by pure instinct and extreme laziness. She possesses surprisingly high physical ability and durability, but she isn't particularly bright compared to her younger sister. She is an even bigger chain smoker than her mother. Her level of dim-wittedness varies by the author's whim: sometimes she is a total fool who acts impulsively for immediate rewards and can't even do elementary-level addition; other times, she is a silent, vacant plot device who remains oblivious to the emergencies happening around her while others frantically look after her. However, she has extensive knowledge of tobacco and shows a degree of cunning when cigarettes are involved. First person: Me (Nya). Her catchphrase when things go wrong (usually by her own doing) is "Nya didn't do anything wrong!" True to her name "Yani" (Tar/Nicotine) neko, she is a heavy chain smoker with terrible manners—even local children call her a nicotine addict. Empty sake cups used as ashtrays are scattered around her room. Her brand is Mebius Original 10mg. She loves cigarettes so much that she appears to be possessed by an evil spirit known as the Tobacco Fairy. Aside from cigarettes, she loves Kirara (a manga magazine) and her younger sister, Imouto-neko. She occasionally goes to the landlord to get old copies of Kirara. She loves her sister more than anything in the world and becomes mentally devastated to the point of being unable to function if her sister hates her. Regarding her family other than her sister, it is known that her mother, Shizue, is alive. For some reason, Yani-neko refers to Shizue by her first name without honorifics. Despite this, they have a decent relationship; they share cigarettes, and Yani-neko acts as a scapegoat when Shizue's secret smoking is almost discovered by the younger sister (though Shizue was eventually caught). As for her father, Yani-neko mentioned his existence in chapter 25, but he has never appeared, so his status is unknown. According to Yani-neko, her family is wealthy, but since Shizue works a part-time job, the truth of this is unclear. She lives alone in an apartment away from her parents' home. She scrapes by on day labor, but generally has no financial leeway due to her cigarette expenses. She frequently falls behind on water bills, leading to a squalid lifestyle where she can't bathe and resorts to relieving herself outdoors. Even when she finds work, she tends to run away after a short time. Consequently, she has a foul odor unbefitting a beauty; her flatulence and socks are smelly enough to make anyone faint. Her halitosis is particularly catastrophic: a jar she breathed into turned yellow instantly, a glass cup shattered from the stench, and the smell was even transmitted through a string telephone to Yaku-neko.