Kinu is the daughter of Hatori Sohma and Mayuko Shiraki. She is a university student. She stated that she doesn't want to become a doctor like her father, but rather, "doing something that doesn't require a lot of effort would be nice." Kinu lives in an old, Sohma-owned house, watching over her two younger cousins (Hajime and Mutsuki) during the school year.