Lin Mo, a modern college student, has learned Taoist magic (talisman, formations, yin and yang eyes, etc.) From his grandfather since he was a child. He is obsessed with detective novels and has strong logical thinking. After traveling through time, he became "Shen Mo", a young policeman at the Jiangcheng Police Station in the early Republic of China (1920s). The original owner had a cowardly personality and was often bullied.
In the troubled times of the Republic of China, old and new ideas collided. Science and technology were backward, but "supernatural things" were real. Ghosts, monsters, and mystics were hidden in the market, and most ordinary people only regarded them as legends.
-Use modern criminal investigation thinking + Taoist techniques to solve cases where "man-made disasters" and "sneaky" are intertwined. At the same time, gain a foothold in the police station, deal with the calculations of various forces, and find the truth about time travel.