Southern Song Dynasty: I, Xin Qiji, Changed History with a Flintlock Gun

This is a historical deduction novel, focusing on strategic concepts and technical flow routes. If you like it, read it. If you don't like it, don't force it. Traveling through time and becoming a young man named Xin Qiji, he knows the history - the Jin soldiers marched southward, the Southern Song Dynasty remained peaceful, and his ambition was hard to realize, so he wrote lyrics until his death. He refused to accept his fate. He lay dormant for ten years, smelting iron, making guns, and training troops. In the autumn of the sixth year of Zhenglong, in Qingshi Valley, eighty guns fought against three hundred golden soldiers and cavalry, with zero deaths. The first name on the ledger was crossed out in blood. But the ledger is still very thick: Wan Yanliang, Wan Yanyong, He Shi Lie Zhining - none of them can escape. This is not the story of "Xin Qiji", but the story of "Xin Qiji rewriting history". Firearms, navy, new army, land reform - a time traveler redefined what the "Northern Expedition" was in Shandong.