Tomoko, a frustrated wife who has been married for three years and has almost no night life with her husband who is a work person. When I couldn't stand it and indulged in masturbation, my father-in-law found me ... I forgive my body for the skillful words of my father-in-law who has a strong libido. When he shows a sensitive reaction to the anal that he accidentally touches at that time, his father-in-law blames him. Tomoko who awakens to the pleasure of the newly learned ass hole and becomes unsatisfied with the occasional SEX with her husband and is in agony. The father-in-law who knew it recommended the development of an obscene ass hole ...