A married woman in her third year of marriage lives with her husband's father. - Her busy husband is often away on business trips, etc., and her frustrated wife masturbates without the couple's activities, but her father-in-law grins when she sees it. One day, a courier with an affair partner comes and has sex, but my father-in-law who was peeking again. And my father-in-law asks for his daughter-in-law's body with the story that he witnessed masturbation and an affair scene. - A daughter-in-law who was threatened by her son and opened her crotch without refusing, but her crotch was wet. In addition, she is crawled at night and squid many times by her father-in-law, who hates her.