A housewife named Yui, who spends a lot of time with her son due to her husband's frequent business trips. One day, her son's friend, who stayed over to work on a report, overhears her moaning from masturbating out of sexual frustration. Excited by what they heard, the friends target Yui when she is home alone and attack her. She is brutally raped, reaching orgasm multiple times, and her shameful true nature is exposed. They then proceed to toy with Yui's body, treating her like a sex toy, escalating her into a hell of pleasure...
