Li Xiaolin thought he was just an ordinary salaryman, but he unexpectedly got involved in the modern urban supernatural detective bureau. Partnering with the mysterious ghost Xuan Ran, and a group of colleagues and clients with different personalities, they encountered strange events one after another - trains in the dark, talking mirrors, resurrected old streets... Behind many supernatural phenomena, there are hidden the good and evil, redemption and growth of human nature. As the case progresses, they gradually uncover the urban crisis of "imbalance in the passage to the underworld", and they also have to face the shadows and truths of their own pasts. In the end, a war about the balance between reality and the other world awaits them... The atmosphere of the whole book is both tense and full of humor, and the ending is satisfactory.
