Chen Yuan, a modern military engineer, accidentally transmigrates to another world resembling the Warring States era and becomes a young crown prince who has been deposed and exiled. Here, martial prowess reigns supreme, and the kingdoms wage war against one another. Facing the barbarian cavalry, political intrigues at court, and the emperor’s murderous intent, he draws on his modern knowledge and starts out in a remote border town. He smelts fine steel, builds cannons, trains a new army, and develops trade, transforming the town into a fearsome “Iron Fortress.” See how he uses technology and strategy to forge a path from prisoner to supreme ruler amid the chaos, building a great empire and reshaping civilization itself.
