Hinata got married after continuing a secret relationship with her teacher, Yukio, when she was a student. It was a happy life, but there was also an age difference and I was a little dissatisfied with the gradually decreasing nightlife. When I greeted him in my underwear to make him feel that way, Yukio took Iioka, her classmate, home. Then, Iioka, who was alone with Hinata, couldn't stand it and approached her. However, the reason why this netorare was secretly established was the work of Yukio, who had a twisted desire to see his wife happy while being fucked by someone else.