Wandering in the Late Han

Liu Chen, a master's graduate in history from Yan University and heir to a family tradition of weapon forging, is blown into the body of a teenage boy of the same name in Gaoping County during the final years of the Eastern Han Dynasty after a lab explosion. Armed with modern metallurgical knowledge and a historian's grasp of the era—but no ready-made formulas for legendary blades—he has no ambition to conquer the realm. Starting as an apprentice in the weaponry camp under General Zhu Jun, he rises by forging superior steel: crafting a peerless saber for Guan Yu, building siege engines for Liu Bei, and applying his craft to survive and thrive amid the chaos. He drills troops with the "three-three" formation, compensates for his fading future-knowledge with engineering ingenuity, and turns the tide with counterweight trebuchets at Wancheng. Yet as the butterfly effect erodes his historical foresight, he learns that human bonds and honest craftsmanship never betray him. He rescues Xun You from death row, shelters the dancer Diaochan under a new identity, takes Lü Bu's daughter Lü Lingqi as his sworn sister, and finds a soulmate in the poet Cai Wenji, their qin and xiao duets echoing like mountains and streams. Meanwhile, his senior apprentice sister Xun Che, also a transmigrant, schemes within Cao Cao's camp, wielding court politics to climb to power—they face each other across enemy lines, allies and rivals at once. From a humble artisan to a general, from a lone drifter to a band of brothers willing to stake their lives, Liu Chen aims to change more than a few battles. He wants to build a world where the sons of common families no longer have to kneel. As the furnace roars and blades are reforged, with the Han dynasty on the brink of collapse, watch how one smith who always believes tomorrow might be a little better forges, with tempered steel, an entirely different age of turmoil.