Momoi is the manager for the Tōō Academy's boy's basketball team. She is a rather cheerful and bright person, which is why she's liked by almost everyone. However, Momoi gets especially agitated when talking to her childhood friend; Aomine Daiki. Momoi is also deeply attracted to Kuroko Tetsuya, a friend back in middle school. She's very passionate about basketball— so much so that people have mentioned that Momoi is even more passionate than most players themselves.