Nana, a new teacher at an all-boys school, is timid and socially awkward. She was once subjected to brutal bullying and was saved by her homeroom teacher, which inspired her to become a teacher herself. She tries to protect Yamada, who is being bullied and physically abused in the soccer club, but ends up getting locked in the club room. To protect Yamada, Nana becomes a sex toy for the delinquents and gets brutally used. Humiliating masturbation show, group creampie, and group bukkake, brutal facial hell, and personality-destroying sex. Even Yamada rapes Nana. Nana's mind begins to collapse.
