Seiso de Majime na Kanojo ga, Saikyou Yaricir ni Kanyuu Saretara...? THE ANIMATION

清楚で真面目な彼女が, 最凶ヤリサーに勧誘されたら...? THE ANIMATION

Based on the erotic game by Frill. This girl enrolls in a tennis club in school. To celebrate, they all go drinking. However, she gets drugged, fucked, filmed and bukkaked on. Multiple times. Oh and her boyfriend is made to watch.