The Ota couple moved in next door to the house where I live with my wife, Minaho. Because the wives were close friends, they were holding a welcome party. Among them, Minaho and the others were excited about a documentary about exchanging couples that was becoming popular. Ignoring me saying it was a setup, Minaho was eager to exchange couples because the Ota house was much larger than ours. I didn't break my attitude of absolutely no, but I lost to Minaho, who wouldn't listen to me, and we ended up exchanging wives for 3 days...