Chen Yan, a modern engineering student, accidentally transmigrates to the Qin dynasty. Using technologies that can be built in ancient times, such as composite bows and improved catapults, he rises from a workshop hand in Xianyang's bow shop to a high-ranking minister. He solves the challenge of mass-producing weapons and advances technical standardization, helping Qin Shi Huang defeat the Xiongnu in the north, reach the Western Regions in the west, campaign in the Southern Seas, and conquer Europe. Amid court intrigue and global wars, he uses technology to rewrite the fate of the Qin, ultimately helping it become a global empire spanning Europe, Asia, Africa, and the Americas.
