Chen Hui, a transmigrator, becomes the mysterious teacher of Qin Shi Huang, quietly changing history with modern knowledge. But when strange symbols and impossibly advanced inventions begin to appear one after another, he realizes he is not the only one who has transmigrated. A fellow traveler has already laid a trap in the shadows, while the specter of the “History Restorers” draws closer. In this altered Warring States era, Chen Hui must race against time to protect Ying Zheng amid the schemes of rival states and a covert war between transmigrators, and uncover the brutal truth behind this distorted age.