Ai has come to teach a special class at the boys' school where Reiko is vice principal. However, Ai does not yet know the true purpose of the class. It is a curriculum to gather all the virgins in the school, abstain from sex, and then take their virginity. If they can hold off on ejaculation until the last day, they will have the best virgin graduation ceremony ever... The devilish slutty vice principal Reiko, the naturally sadistic librarian Chihiro, and the lewd and sadistic school nurse Aoi relentlessly provoke the students, causing them to ejaculate one after another and dropping out. And Ai's slutty nature also awakens...