Nozomi Sasayama, with her sweet facial features, is a strict teacher whose harsh teaching style has earned her the resentment of many students at school, making her a target for revenge. The students uncover her weaknesses and hire a group of molesters to ambush her on her daily commute. On the day the plan is executed, the students photograph her actions and send her threatening letters. With her vulnerabilities exposed, Nozomi is plunged into days of suffering so intense she describes them as hell.