Chen Yan is the only descendant of the reclusive Onmyoji family. He has the fate of "lonely Chen and few people". He holds an ancestral bronze compass and can detect evil spirits in ancient tombs. Under the modern city, there are twelve secret realms of imperial tombs that lead to the depths of the earth. Evil spirits that cannot be explained by science appear frequently. Where the police are helpless, that is when he takes action. Every time you visit a tomb, your life is lost by one day. The compass guides your eyes, but it also pulls the shackles of fate. Family curses, Digging Society conspiracies, and underground world disputes are sweeping across the world. He must uncover the truth about the Twelve Emperors' Tombs and reverse his destiny before he dies at the end of his life. The rivers and lakes are dangerous and the tomb passage is deeper. The only thing that counts is getting out alive.