: The busty president of the Calligraphy Club and Keiki’s senior. She is a hardcore masochist who wants to be his "pet".
The series revolves around Keiki's search for his "Cinderella," the mystery sender of the letter. As he investigates the most likely candidates, he discovers that every girl who might have sent it harbors a bizarre secret fetish. Kawaikereba Hentai demo Suki ni Natte Kuremasu ka?
: A petite, puppy-like underclassman who is actually an extreme sadist . : The busty president of the Calligraphy Club
: Keiki's classmate and a talented artist. She is a fujoshi (fan of "Boys' Love" manga) who uses Keiki and his friend Shouma as inspiration for her erotic drawings. Kawaikereba Hentai demo Suki ni Natte Kuremasu ka?