Yarichin Bitch Club

Takashi Tono, a first-year student, is transferred from Tokyo to Mori Mori Academy, a prestigious boys' boarding school located in the heart of the mountains.

Once there, he befriends another first grader, Yaguchi, who tells him that he must join a club.

Yaguchi is a member of the soccer club, so he urges Tono to join. But Tono hates sports. So, he ends up in the photography club, where he immediately learns that it is only a cover for the Yarichan Bitch Club, a club dedicated to providing sexual services to those who want it, students as well as staff of the institution.

Tono is joined by a fellow freshman, Yu Kashima, who also unknowingly joins the Bitch Club. Tono and Kashima find out that they have to reach a certain number of services per month, or they themselves will be sexually abused by the rest of the club members.

Kashima and Tono are both virgins and in order to avoid accepting the club's contract, Kashima declares herself a couple with Tono, which surprises everyone, especially Tono. Yaguchi starts to be jealous of his cousin and tries to seduce Tono.