Ringo is an 18-year-old third-year high school student of Prefectural Sanada East Girl’s High School and a member of its student council. Despite her seniority and position, the boys of Prefectural Sanada North High’s student council acknowledges her with the honorific "-chan." She has a short temper, too much pride, and an inferiority complex against high school boys. She is also a bit of an airhead which leads her to getting tricked so easily.

Ringo is shown to feel insecure about her height and has a big appetite, but is rather popular and gets hit on easily.