Special selection: Friend's mother

Momoko (Kinno), who broke up with her husband to be with her mistress, accepts the cock of her mistress, Terada, on her first meeting since being single. However, after the incident, Terada tells her that everything up until now was just for fun, and she is at a loss for words. The next day, a heartbroken Momoko returns home to find her son's best friend Hideo lying on the sofa wearing his own underwear. And out of loneliness, she makes a mistake with Hideo...but that mistake leads Momoko into a strange love triangle.