Lin Yan, a graduate student in the Department of History, accidentally traveled back in time to the fifth year of Zhengde and became "A Yan", a refugee on the verge of death. He only had a stopped watch and half a fragment of "History of the Ming Dynasty" beside him.
He used modern knowledge to predict heavy rains, improve sanitation, and survive in desperate situations, but found that the Ming Dynasty was far heavier than the history books: harsh government forced people to commit robberies, fraud was rampant in examination rooms, and the shadow of the powerful eunuch Liu Jin was everywhere. From the countryside to Yingtian Mansion, he teamed up with the upright scholar Su Wenyan and the mysterious woman Qin Shuang to take advantage of the historical trend to overthrow the powerful officials and defeat the situation with the people's support in the drought. Finally, he went to the border and used wisdom to improve military transportation, promote reclamation, and let new crops take root in the land.
When the watch stopped and the history books were worn out, Lin Yan looked at the peaceful border soldiers and civilians and suddenly realized: the mission of the time traveler is never to rewrite history, but to protect the people with a glimmer of light in the torrent. If you are moved by this persistence, you might as well tell this story to more people.