Ayame is a single mother who has lovingly raised her only son, Aito.However, one day, Aito's homeroom teacher visits and learns that he has been secretly filming at school.Ayame is shocked, but attracted by her homeroom teacher who sincerely tries to face her son who made her mistake, she unintentionally has a relationship with her.However, Aito sees her love affair and ignites Aito's sexual impulses.Ayame uses her own body to her fullest and instills sex in her Aito because of her self-reproach.