Yume, who doesn't care about school or studying, manipulates the boys in her class and disrupts classes every day. She was a super problem child who was out of control, verbally abusing her homeroom teacher and boycotting classes. However, when she entered her third year at high school, everyone was preparing for the entrance exams and prioritized studying over playing, and Yume gradually became isolated. The teacher, whose position was reversed, used the students to get revenge on Yume by raping her with a creampie, using her future career as a pretext.