岡本 冬姫

A college girl who attends the same university as Nakayama Shunsuke. She has a neat appearance and atmosphere, but in truth, she has unfaithful tendencies and has slept with several men while dating Shunsuke. Therefore, she has a lot of experience with men. After a fight with Shunsuke, he refuses to have sex with her, causing her to become frustrated. Thus, she joined the group. [Translated from DLSite]