Ryo and Misato, who are unsuccessful married people, hit it off and ended up having an affair due to their relationship with a business partner. At first, it was burning, but when each other began to think that they had to give up on the parallel unfaithful relationship, Misato asked, "Let me monopolize it once" and go on a one-night hot spring trip. However, Misato seems to have decided that this will be her last...!
