A bath at a certain guesthouse. There is no distinction between men's and women's baths, and normally, the system is time-shifting...they are naked in a locked room with men and women alone, and the gaze thrusts into confusion. His wife has her private bath first, and then she introduces a handsome male actor! She looks surprised, "What, mixed bathing!", but she looks really excited when she is alone with a young man, but what will happen?