Her brother-in-law, Yukio, who closed the company she founded, decided to live with her husband, Kohei, who inherited the family business. Yukio, who knew that he was not satisfied with his married life with his brother, took a break from the company because of a fake illness, and tied up his love during the day when there was no fairness. At first, Ai refuses, but gradually becomes intoxicated with the world of ropes.
