Worried about her brother-in-law Taro's recent lack of energy, Minami Kojima tries to intervene when she discovers him being bullied by delinquent classmates. Her husband dismisses it as unavoidable teenage behavior, but Minami's concerns prove justified. When she confronts the bullies, her actions backfire, making her the next target and escalating the situation. Despite repeated apologies, the group shows no mercy, dragging her into an endless gangbang of creampie-filled abuse, subjecting her to relentless suffering.