27-Year-old Shen Yan is the owner of an antique shop in Panjiayuan, Beijing. On the surface, he is cynical, but in fact, due to family blood, he has been able to see "things" that others cannot see since he was a child. He always thought that his "yin and yang eyes" were a hereditary disease, until one day he received a letter without a postmark, which contained only a yellowed note: "The seal of the nine rays is opened, and a hundred ghosts come out of the cage. Son of the Shen family, it's time to wake up."
