Jun lives a carefree married life with her kind and gentle husband. However, Jun has one complaint - living with her vulgar father-in-law. She is fed up with living with her father-in-law, who sexually harasses her on a daily basis. One day, Jun falls asleep when her husband is not around, and her father-in-law takes advantage of his son's absence to push aside her underwear and devour her genitals, which smell of female and sweat, and finally forcibly inseminates her. From then on, Jun continues to be assaulted by her father-in-law's beast-like sexual desire, and her young body continues to be defiled...