Great Qin: From Desert Wasteland to Tributes from All Nations

The protagonist transmigrates into the body of a good-for-nothing prince exiled to the frontier and binds himself to the "Super Divine Territory System." As long as he increases the population and happiness of his territory, he earns rewards. While the First Emperor is fretting over provisions in Xianyang, the protagonist's lands are already yielding a thousand jin per mu. When the Xiongnu march south, he casually tosses out a few "sky-rockets" and wipes out their main force. Three years later, when the First Emperor inspects the frontier and sees towering high-rises, smooth asphalt roads, and electric lights shining day and night, he bursts into tears on the spot. "My son, this isn't the frontier. It's a land of immortals!"