Three months after moving into a new home, Kana notices that her son Makoto has become withdrawn. When he brings classmates home, she witnesses them bullying him and reports it to the school, resulting in indefinite suspensions. Enraged, the adult “classmates” in this role-play invade her home and assault her. No matter how often she apologizes, they refuse to forgive her, beginning an endless nightmare of gang rape and repeated creampies.