Also known as: ヤリチン☆ビッチ部
A Yaoi web manga series written and illustrated by Ogeretsu Tanaka. It has been self-published on Pixiv since 2012, received a print publication in 2016, and a direct-to-DVD animation in 2018.
It follows the life of Toono Takashi after he transfers to Morimori Academy, a private all-boys boarding school deep in the mountains. After arriving, he befriends a member of the school's soccer team, Yaguchi Kyousuke, who informs him that students of the school need to join a club for at least a year. Toono opts for the easiest choice and joins the school's Photography Club, only to discover that it's a front for the Yarichin Bitch Club, a club for boys who like having sex and work as unpaid prostitutes for the other students and staff members at the school.