Hitozuma Koukan Nikki Episode 1

Kouichi lived happily by talking, Kanako, and his daughter, Nao. But one day, Kimihiko, his neighbor, said, “Do you want to play with a married woman?”, “What?” What Kimihiko received for Kouichi to exchange their wives. Kouichi did not take it seriously at first, but even that curiosity began to emerge.