An ancestral "Book of Souls", a bronze token, and a college student who dropped out of school were forced to inherit the mantle of the Lin family's ghost hunter. From the deserted villages in western Zhejiang to the ancient tombs in the Qinling Mountains, from the haunted houses in the city to the three-hundred-year puzzle, he has stepped into the intersection of yin and yang again and again to send homeless people home. But when he finally revealed the truth, he discovered that he was already in the game.