Kiryuu, Mikazuki

桐生三日月

She is an underclassman who is "chasing after him (Keita)". They used to be in the same sports club at his previous school. She is even more perverted than Ako and Riko in her attempts to get Keita's attention, having no qualms about flashing her privates at him in front of others. She is also somewhat of an airhead, assuming that Miharu and Keita are no longer virgins simply because she found them hugging. Yuuzuki is her older sister, whom she usually refers to in private as "my otaku sister". Mikazuki looks up to and loves her sister dearly, even stating once that the visual novel she bought was intended to cover for her sister. However, she also enjoys taking lewd pictures of her sister in cosplay as compensation for covering for her. She was able to correctly assume that her sister has feelings for Keita.