– Sakiko remarried Toru who has a son who is a school student. Sakiko tries to be a good mother in her new home, but her son Kaoru feels uncomfortable with Sakiko, whose pheromones are too strong as a woman rather than as a mother. One day, when Kaoru comes home from school, he sees Sakiko talking harmoniously with a delivery company and explodes in anger. To Sakiko, who gives off her sex appeal regardless of who is a man, Kaoru also uses her mother, who is not related by blood, as a tool for sexual desire processing.