Gu Yanqiu, a scholar from a poor family, accidentally obtained the broken pages of "Tian Ji Lu" because he exposed the forgery of cultural relics, and awakened his special ability to trace history and interpret prophecies. There are undercurrents surging in the Yin Dynasty, the imperial power and the aristocratic families are fighting, the northwest frontier is full of war clouds, and the Jianghu forces are secretly stirring up the situation. The Duke of Zhen Guo, Pei Yuanqi, is ambitious and attempts to usurp the throne, and has coveted the broken page for a long time; Lin Mobai, the leader of the "Moyin Alliance", is also dealing with various forces, waiting for opportunities.
Gu Yanqiu relied on his ability to solve local injustice cases, and then went deep into the capital to get involved in the battle for the right to inherit the throne. He saw through conspiracies time and time again and moved forward arduously amid the intertwining of historical truth and real-life intrigues. When he discovers that the broken pages involve the mystery of the founding emperor's life experience, he joins forces with Shen Mingzhao, the daughter of the Minister of Rites, and other righteous people to start a life-and-death game with the villains, vowing to use history as a blade to rewrite the world of troubled times.