A married woman, Himemi, lives with her son while her husband is on a business trip. One day, her son's friend who came to study overnight catches Himemi masturbating and forces himself on her, leading to a relationship. Soon after, the friends take advantage of her son's absence to toy with Himemi's body, bring her to orgasm, and have sex with her. Then...Himemi's body becomes intoxicated by long-forgotten pleasure...
