Female teacher Ritsuko is framed by delinquents for helping Tanaka, a bullied student. In a late-night classroom, she is detained and raped by delinquents. Although Ritsuko refuses desperately, her body gradually agonizes. After that, I became a sexual slave who obeyed them and was played with toys during class and made public shameful play in front of many students. In addition, I was forced to have sex with the student who was being bullied.