Synopsis: A construction engineer travels back in time to become a clerk at the construction site of Qin Shihuang's Mausoleum, and discovers that the Lishan Mausoleum hides engineering miracles that transcend the times. When he tried to use modern management knowledge to improve the situation of workers, he was involved in the triple mysteries of Xu Fu's eastward journey, the truth behind the burning books, and the curse of the Great Wall. On the eve of the collapse of the Qin Empire, he must choose: follow history and live in seclusion to avoid disaster, or use his last time to preserve the fire of civilization that is about to be engulfed in flames?