In the OL era, Misaki and Ryoko, who had a relationship with their senior juniors, met each other in secret. However, the relationship between the two did not last long. Two people leave Misaki's marriage. In time, Ryoko will have a family and walk through their respective lives, but the relationship between the two is again from one phone call from Misaki. A les-stories work depicting a relationship between married couples that is forbidden.