Kazuya's roommate, Shun, is easygoing despite appearing to be a tomboyish girl due to his resemblance. In reality, he is male and the oldest son of the Kisaragi family, who run traditional Japanese inns. The female members of the family inherit the company, but this has no bearing on Shuns gender identity or sexual orientation. He identifies as heterosexual and went out with a girl during his junior high school years. Shun is confident in himself and takes pride in his long hair, which he dresses up to appear cute. Despite his appearance, no one doubts that Shun is actually male. He has a younger brother named Reina and an infant sister named Yui.