Hikaru becomes an adolescent and follows her mother as the opposite sex with her eyes. When I came home from school early to surprise my mother, my mother was masturbating alone. - Looking at her breasts and, she recognizes her mother as the opposite sex, and remembers it and gets an erection. One day, over Hikaru's education, Mary and her father quarrel and raise their hands. Mary holds back crying in front of her son, but Hikaru confesses to her mother when she sees it.