Cheng Yu travels to the Southern Song Dynasty, and the beginning is in hell mode - the golden soldiers massacre the village, the blade is at the neck, and everyone will fall to the ground in the next second!
At the critical moment of life and death, he bound to the [Tiangong Kaiwu] system, and his mind was filled with gunpowder proportions, blast furnace steelmaking, cement firing and even the capital's pipe network drawings, unlocking the wisdom of thousands of years of infrastructure with one click.
Starting from a refugee, he improved the plow, burned wasteland to mine, built trade roads and built fortresses, and turned the barren land into the world's granary. The powerful ministers in the DPRK said that he gathered people to rebel? He started a trade war with glass, sugar, and soap, and first emptied your treasury; then did the Jin Kingdom go south? He set up artillery and lined up to shoot, making Jurchen Iron Buddha doubt his life. See how Cheng Yu used farming to leverage the country, and used the power of infrastructure to reshape the iron-blooded Song Dynasty!
