Nanako, a wife who lives a mediocre life with her husband. One day, when the water supply broke and asked for repair, the worker who came was Mitsuru Kawase, a seemingly dull young man. Mitsuru is going to Tokyo and training to take over the construction shop of his parents' house. I have them repaired immediately, but water spouts from the water crew. It's a hard worker, but Mitsuru seems to be a crap. A few days later, Nanako, who was fired from the company and met Mitsuru, who had changed her appearance, wanted to stay with him for one night ... and took a pen and wrote a false letter to her husband ... ..