Shen Yan, who was born in a yin year with a yin moon and a yin day, has been able to see "things" that others cannot see since childhood, which is regarded as unlucky. When he was eighteen years old, a bronze plaque engraved with ghost patterns was unearthed from his family's old house. Overnight, he was caught in the cracks between yin and yang - evil ghosts seeking his life and vicious ghosts haunting his soul. Even the old ghost in the City God's Temple persuaded him: "Boy, you are born to be bitten by ghosts."
But Shen Yan didn't believe in fate. The bronze medal is actually the "Judge's Order" that has been lost for thousands of years. It can summon evil spirits and suppress evil spirits. It also contains a set of "Nine Chapters of the Mysterious Path" that have long been extinct. In order to protect the people around him, he held on to the judge's order, starting from suppressing an illegal ghost, going to the ghost market, exploring the underworld, and fighting evil ghosts, and gradually uncovered the truth about the rampant ghosts in the world: It turns out that the imbalance of the three realms is caused by someone raising the "Mother of All Ghosts" in the depths of the netherworld, hoping to use the human world as a furnace to refine the evil body into immortality.
