her mother

Reiko's daughter Aya, who is around the same age, has started to show signs of bad behavior, and her husband has been warning her to be nagging. One day, Aya's homeroom teacher, Terada, tells her that Aya's disordered life is caused by her relationship with a problem child named Mizutani. Just then, Reiko encounters Aya bringing Mizutani to her house and flirting with her, and reprimands her, but... A few days later, Terada learns that Aya, who had lost faith in her parents, had shoplifted. Reiko offers her body to keep her daughter from being expelled from school, but Mizutani sees her doing so...