New teacher Tsugumi gets harassed by overbearing parents who accuse her of seducing their sons during class, leading to lower grades. They demand a 50% tuition discount, claiming she's the reason. Things escalate when they discover a tattoo on her body, stripping her naked and refusing to relent even after she apologizes. They mercilessly punish her, beating her breasts with rotten vegetables if she doesn't show remorse. She's tied up in the classroom and forced to deal with anal play as a form of complaint resolution. Finally, she's taken to an SM bar and made to perform in a deviant show.
