In an accident, a modern youth traveled through time and became Shang Yangsen, a laborer in Yuyang in the late Qin Dynasty. It happened to be a heavy rain for days in Daze Township. The original subject died of illness due to exposure to the rain. He was reborn in Nirvana with the Golden Finger of the Cave. In a desperate situation where tyranny is fiercer than tigers and chaos is imminent, all the nine hundred corvees are in danger. They will die if they rebel and be killed if they go to war. He saw the overall situation with his prophetic vision, and based on Dongtian farming, he frantically hoarded grain and grass, bred livestock and poultry, and solved the problem of survival. Later, he broke away from the rebel disputes and took root in southern Xinjiang to open up wasteland, gather refugees, innovate agricultural methods, improve governance, and create a pure land in troubled times. At the same time, he trained an elite and strong army, honed his army for hundreds of battles, counterattacked step by step from the bottom of the corvée, used agriculture to support the army, used the army to control the world, and finally settled the chaos of the Qin Dynasty.