After waking up, Li Chen, a graduate student in history, finds himself transmigrated into the Tang dynasty as Crown Prince Li Chengqian. Familiar with the events of the Zhenguan era, he plans to use his foreknowledge to make his mark, only to discover, to his shock, that this Tang dynasty has Taoist arts made manifest, hidden Mohist mechanisms, and a mysterious organization called the "Guardians of History" secretly manipulating the course of events.
As a lame crown prince, he faces the deep suspicions of his father, Emperor Li Shimin, the relentless pressure of his brother Li Tai, and the unseen backlash of the world's rules against those who "rewrite history." From being suspected of having been possessed when he improves his leg, to making his mark by predicting natural disasters; from foiling conspiracies and building a power base to leading a northern campaign across the grasslands and forging alliances with foreign tribes, Li Chengqian dances on the edge of a blade with every step.
He uses modern thinking to drive reform and Mohist technology to strengthen the military. Yet, through the mysteries of Taoism, he glimpses a cruel truth: he is the ninth transmigrator to try to change the fate of the Tang dynasty. The first eight times, the golden age was mysteriously "reset" at its peak. As brother turns against brother, great clans strike back, and the Guardians move to assassinate him, should he submit to the cycle and scrape by to save his life? Or become a beacon and cut short this endless loop?
See how the child who defies fate makes his moves in the prosperous Tang, carving out a brand-new path to survival for generations to come from the narrow gaps of history.
