The twins who had been separated for many years reunited, but on the day of their reunion, they were separated by yin and yang. The living person becomes the other person. Promise, the number one socialite in Ningcheng; Xie Jinghua, a business emperor in the entertainment industry and a wealthy man. A contract tightly entangles the fate of two unrelated people. One wants to go, the other wants to stay. All trajectories are deviating from their intended direction.