Real name: Yaniko Sato. First person: Nya. Ends sentences with "nya."

Real name: Imoko Sato.

The mother of Yanineko, Imoko, and Guest. As a beastman (cat), she looks remarkably young for her age. Like her daughter Yanineko, she is a severe heavy smoker; however, she at least makes a show of following the "no smoking in the house" rule established by the responsible Imoko. She dotes on Yanineko and Guest, showing a soft side that doesn't get angry even when her daughter calls her "Shizue" without honorifics. She is a total nicotine addict who prioritizes cigarettes above all else, and her daughter Yanineko clearly inherited her deadbeat nature. Consequently, when she's in a pinch or things get inconvenient, she breaks down and makes excuses exactly like Yanineko, crying, "Shizue didn't do anything wrong!" Despite her elegant appearance and tone, her inner self is immature, characterized by the gap where she suddenly switches to a pathetic way of speaking.