Reiko Oda, who is gang-raped by her son's classmates every day, OBA-230

Reiko Oda has been married to her husband for 15 years. One day, while driving, she accidentally hit someone. Although the other person was not seriously injured, she was so frightened that she ran away. All of this was witnessed by Tomoyuki's resentful classmates, who then made Reiko Oda their target...