After losing her husband and raising her son 'Makoto' earnestly on her own, 'Kyoko'. Until now, Makoto has monopolized Kyoko, but suddenly, he is introduced to Kyoko's remarriage partner. Filled with inferiority towards Kyoko, who is becoming more charming under the influence of her new father, Makoto. Feeling dissatisfied that he can no longer monopolize his mother, Makoto, as if to reclaim his mother, begins to seek Kyoko's body.