Lin Fu, a master of modern military engineering, accidentally traveled to Jiading in the Southern Song Dynasty for ten years. At this time, the Mongols were attacking Xixia, the Jin army was plundering Huaixi, and the court was controlled by Shi Miyuan, leaving Jiangnan with only half a breath. He became a young man from the Song Dynasty who was captured on the battlefield in Huaixi. As soon as he escaped, he was stuck between the Song and Jin armies.
No divine power, no backing, only knowledge from a thousand years later. He first modified trebuchets to defend Haozhou, then made gunpowder weapons to repel the Jin soldiers; he organized the border rebels to form a team, and then fought with the powerful officials in the court for support. Lin Fu knew that the root of the Southern Song Dynasty's weakness was rotten internally - he not only had to fight for the Mongolian Golden Cavalry on the battlefield, but also struggled with the capitulationists in the court; he had to rely on technology to supplement military strength, and also rely on reforms to win over the people. This time, he wanted to stop Jingkang Shame from coming back, let Yanyun Sixteen Prefectures go home, smash the "Weak Song Dynasty" brand, and create a strong Song Dynasty with his own hands
