Ai comes to the all-boys school where Reiko is the vice principal to teach a special class. However, Ai still doesn't know the true purpose of her class. A newly written curriculum that gathers virgins from all over the school and makes them abstinent. If you can hold back your ejaculation until the last day, you can have the best virginity graduation ceremony... The demonic slut vice principal Reiko, the natural sadistic librarian Chihiro, and the slutty sadistic insurance doctor Aoi's merciless provocations one after another. Students ejaculate and fall off. And then, the qualities of a loving slut begin to awaken...