After losing her husband, Misuzu lives alone with her stepson Kenji. As he grows up day by day, a new emotion begins to stir within her heart. Kenji's friends also start noticing Misuzu's beauty and become infatuated with her. Caught in masochistic fantasies, Misuzu surrenders herself to the boys, losing herself passionately—her actions deeply affecting Kenji. He too can no longer suppress his forbidden feelings for his stepmother. Between the two, an intense, complicated bond begins to form.