Chen Mohun, a modern ancient book restorer, traveled through the Ming Dynasty and became a poor scholar who failed the provincial examination. In the examination room, he accidentally showed off his super memory and wrote silently the fragments of the lost "Yongle Dadian". On the spot, the chief examiner Zhao Chongyue was furious, the deputy examiner Jing Jing was horrified, and the whole hall was in an uproar. Overnight, he went from being a failed student that everyone laughed at to becoming the focus of the imperial court's undercurrents - Xie Yunzhi, the daughter of the powerful prime minister, took the opportunity to show her favor to him, while his classmate Shen Heting betrayed him out of jealousy. Chen Mo was forced to get involved in the whirlpool of the scientific examination fraud case, suspicions of rebellion by the vassal king, and changes in imperial power. While he relied on the knowledge of classics to change his destiny, he also glimpsed the larger conspiracy behind his time travel - it turned out that the "Yongle Dian" contained a "secret" that could destroy the dynasty.
