His father's remarriage was Saki. His young and beautiful stepmother, Atsushi, was suspicious. "Why do you think such a woman (human) is my father ..." And the bad premonitions are in sight. One day, Atsushi happens to witness a scene where Saki is having an affair. Atsushi, who was usually sweaty and had a fair charm in her housework, anger over betraying her father and her own feelings for Saki became troubling, and she attacked Sasaki with the feeling that she could not be angered or greedy.