Chief Armaments Master of the Ming Dynasty

When Lin Fan transmigrated into the body of a beggar at the end of the Ming Dynasty, Li Zicheng was still a courier chieftain worrying about unpaid postal taxes. A modern man with knowledge of materials science and chemistry, and a future rebel leader about to overthrow the empire, met in the cold winds of northern Shaanxi in the first year of the Chongzhen Emperor's reign. Lin Fan only had crude sulfur and damp saltpeter, while Li Zicheng only had a well-sharpened old knife at his waist. They lacked everything—food, iron, firearms, and the means to survive. But they didn't lack one thing: the will to live that came from being driven to the brink by the world. The Ming Dynasty was on the verge of collapse, and heroes rose up everywhere. And he, starting from repairing stirrups, gradually changed the course of history in ways that were understandable in this era.