I was busy with work and missed the time to get married, but fortunately I got a beautiful and capable wife, who was too good for me. His wife, Rieko, had remarried but she and her stepdaughter Taka were still happy every day. One day, as usual, when I came home from work, the bed sheets I had just changed were dirty. I felt strangely uneasy, but I didn't realize that this was the beginning of my betrayal...