no way, my wife... ■2 nights and 3 days in a couple's exchange life, Kazusaki Kuno

The Kuno and Kanda couples living in the same apartment building have a regular drinking party once a month. On the same day, when four people were drinking together, their husband talked about a TV program in which they exchanged marriages, and from that point on, they had to exchange couples. However, the exchange of couples creates unexpected mistakes.