Li Yun, a young teacher at a modern university, accidentally traveled to the "Dasheng Dynasty" similar to the early Ming Dynasty, and became a poor scholar who was framed and lived on the streets. In order to survive and investigate his original grievances, he pretended to be the "Cui family of Qinghe". With his solid knowledge of historical documents and textual research ability, he broke through in the imperial examination, court and local governance, and gradually uncovered the secrets of time and space behind the time travel.
