To celebrate Miou's farewell due to an office romance, employees participate in a company trip to a ryokan where she had secretly stayed with her boss. At night, alone together, they can't hold back their feelings and engage in tongue-kissing affair sex. With inhibitions gone, they repeatedly meet in secret during the trip and have intense sexual intercourse. Today might be their last chance to see each other; knowing it's wrong only makes them burn more intensely. So she forgets her husband for now and demands he ejaculate inside her over and over…
