He has been married to his wife Ririko for 5 years and has been living with him for 10 years. Now the couple has not been in their own bed for more than a year. That joy for us is BBQ with Mr. and Mrs. Uchimura living in the same apartment. We both have sexual trouble. At the BBQ party, Mr. Uchimura came up with the idea of ​​a couple exchanging from the words "exchanging" that I uttered, and we would exchange the couple for a day. The couple initially exchanged in the hope of arousing each other's jealousy, but they never thought that Ririko would be stolen