The absence of a home husband was also the time when Ninomiya's lewd wife had an incestuous affair with her husband's brother. She and her brother now live together in a small house left by their father before he died. The younger brother and his wife are working part-time to save money to buy a new house and then move out to live separately for convenience. But life is not like a dream, in life, bass guys often appear. That morning, her husband went to work, only his wife and brother were at home because the two had been in the same house for a long time, so they also had feelings for each other, and while cleaning the house, the husband saw that she was dressed too sexy, only wearing a bikini and no underwear. Perhaps this was also her purpose in order to erode her husband. Unable to resist him rushing at her like a beast that had long craved fresh meat, naturally she was no less than him, launching a series of attractive sexual positions in response.