About the book: 2024 / Young magistrate Song Ziyu arrives in the old capital of the Zhongcheng Empire. The city has an atmosphere of decline, the residents are superstitious, and a demon is blamed for a series of mysterious murders. With the help of the arrogant Mr. Hu Mengzi, Song Ziyu will have to solve mysterious crimes. The situation is aggravated by the fact that one foggy night in the city... Magistrate Sun himself is killed. But in this city it is not so easy to die.