Kouhei's little sister and a member of the Games Research club, as well as Ruri's classmate. Similar to Kirino, she has an obsession with eroge, albeit she prefers hardcore yaoi. She even fantasies about her other clubmates, imagining her brother and Kyosuke as a couple and becoming visibly disappointed when Kyosuke assures her that he is straight. The relationship she has with her brother is quite strong yet it is unclear how they feel about each other. She joined the Games Research club.