Late Ming: From the Start, I Handcrafted Firearms and Conquered the Four Seas

A peacekeeping NCO transmigrates into the Ming dynasty as the most miserable junior officer on the coast. His superiors skim his rations and pay, his starving men desert, and his fiancée is about to be snatched away. The entire garrison laughs at him as a good-for-nothing. Chen Du grabs an old matchlock made from scrap and hand-builds a “bird cannon” in three days: no match cord, no misfires, and deadly accurate at a hundred paces. Bang! The stone lion outside the government office loses an ear, and the senior officer turns pale. “I'm a timid man. My gun might go off by accident.” Pirates coming? Blast the hell out of them. Foreign fleets? We'll deal with them too. From this day on, I call the shots across the entire sea.