“What is that person going to do?” Ichiro muttered in the bath. The night when the bride is traveling and absent. Yumi, my sister-in-law, has arrived. I was confused by the sudden visit that I couldn’t understand … “Shall I wash my back?” Naked Yumi came in there. Yumi seemed to be thinking of seducing Ichiro to use it as an outlet for libido. You can’t betray your bride. Moreover, the other party is my sister-in-law. Ichiro desperately tries to reject it with reason, but Yumi keeps her body in close contact with a bewitching smile.