Cui Yan, a young man from the modern era, unexpectedly travels through time into an ancient dynasty and becomes the frail, frequently ill son of a peasant family. He is also conscripted for corvée labor. The grueling work nearly breaks him, and when he finally struggles home, he finds a household stripped of everything. His neighbors have little faith in the frail young man, believing he will never amount to much. Knowing that studying is the only way to change his fate, Cui Yan resolves to take the imperial examinations. Despite his persistent illness and impoverished circumstances, he remains steadfast in the face of others' doubts and criticism, studying diligently day and night. Through sheer perseverance and relentless effort, he overcomes one obstacle after another, rising from the lowest ranks of forced labor through hard study to ultimately top the imperial examinations. By using knowledge to rewrite his destiny, he achieves a remarkable reversal of fortune.