Yurikawa's husband often considers himself the happiest man because he has a wife who is not only beautiful but also loves and cares for him completely. However, this is only true when he is at home; when he goes on business trips, many unexpected things happen. In front of him is the woman of the family, but behind his back is a despicable adulterer. As soon as he leaves the door, the lover she had messaged beforehand starts to freely enter the house, and this adulterous couple continuously engages in sexual relations in every position around the house.