Miyabi married a man she met at work. - She was spending her days in harmony with her husband, but her stepchild, Yusei, did not open her heart and was at a loss. - She tries to shorten the distance somehow, but Yusei, who has become distrustful of women by dragging the past betrayed by her previous mother, tries to use her as a sexual processing tool and drive her out. Miyabi continues to follow his orders in search of family connections, but Yusei brings his classmates into the house and continues to play with her even more mercilessly. And in the days of endless shame ...