"Let's end it with this. I always think so, but I'm slurping ..." Yuko (33 years old) who met in Tachikawa is a youthful married woman who does not look like two children. Every day, I make lunch boxes for the children and ride them to kindergarten by bicycle. At first glance, a peaceful and comfortable life ... However, the married woman had a secret that she could not tell her husband. The existence of an affair partner who is more compatible than her husband. A woman's heart that is disturbed by a secret meeting once a month.