Airi Kijima had an unhappy life with a husband who didn't care about her all the time, so she started looking for another man to have an affair with, to help satisfy her. One day, when she was on a date with her new boyfriend, and they were both on their way to a hotel for couples, the husband suddenly saw them so he secretly followed them to the hotel. The room was right next to his wife's room with her lover. In the next room, he tried to press his ear against the wall to hear the guys moaning in the next room. He couldn't believe what was happening. But that's just because he has a beautiful wife but doesn't know how to keep friends, now he regrets it.
