His wife, Sayuri, and his wife's best friend, Yuko, have been friends since high school, and occasionally spent time drinking at Yuko's house, like a girls' night out. The conversation is always a constant "cold married life." One day, Sayuri accidentally meets her best friend's husband, Toru, on the roadside. There was no need for a reason to overlap with frustrated men and women, and I became obsessed with an abnormal world that I couldn't experience in my married life. However, their relationship is revealed without a second, and the burning affair freezes in an instant...