Asano was forced to take responsibility for leaking information and was fired. The world was cold towards such a man, and he was unable to find another job, so he made a living by cleaning buildings. One day, he was asked to fill in for the person in charge at his former workplace when they couldn't come. Asano desperately refused, but there was no response... Asano stepped into the familiar building with determination and began cleaning, but his former boss Nanami, who had just arrived at work, started to greet him, but stopped in her tracks. "Could it be... Asano?" Who would have thought that this reunion would greatly change the fate of both of them...