Sho is troubled because he can't get along with his remarried husband's stepchild. His son has been withdrawn since Sho came to his house. Sho indulges in an affair with an insurer regardless of her husband. One day, in her son's room, she discovers Sho's voyeurism and lost underwear. In addition, she is threatened and fucked by her son's adultery video. His son's humiliation training makes him fall into a sex slave both physically and mentally.
