My mother, who has a strong sexual desire (has a habit of cheating), cheated on her beloved boyfriend.

Yusuke, who was invited to her home for the first time, was so nervous that he arrived earlier than planned. And what awaited him was not her, but her mother, Chitose. The two end up waiting for her to go shopping. But... Yusuke can't help but be bothered by Chitose's chest, which is sexier and more lewd than his daughter. When Chitose saw Yusuke's innocent appearance, he was unable to contain his arousing desires that had been going strong for the first time in a while, and he ended up provoking him with his full sex appeal... "Oh, what's wrong with holding his crotch?"... It was the beginning of a secret mad relationship between his daughter's boyfriend and his girlfriend's mother who couldn't tell anyone...