A hundred thousand years before the story begins, a great melee engulfs the immortal world, the gods fall, and a mysterious Book of Life and Death drops into the world below. Young archaeologist Lu Yun is on a scientific expedition when he stumbles into a burial chamber whose age no one can identify. That discovery shatters his peaceful life and launches him on a thrilling hunt through one mystery after another. Drawn into the Immortal Realm by the Book of Heaven, Lu Yun takes charge of Xuanzhou City as its governor in Langxie Tian. Trouble greets him the moment he arrives. His term is nearly over, and the powerful families of Xuanzhou have their own ideas about who should hold the governor's seat. Lu Yun wants to keep serving, yet he is unable to practice cultivation. The adventure pairs his search for mysteries with a struggle to keep his post.