Furuhashi Suzuna

The middle sibling, she is active, strong-willed, and intelligent. She has been studious and clever ever since her student days, and she has a serious, plain-spoken personality. She is a working professional who sustains the entire family financially. If Ayana serves as Kazuki's mother figure, Suzuna serve as the father figure. Because of this, Kazuki tends to be at the receiving end of her scoldings.