Modern young man Mu Chen traveled through time and became the eldest son of the Qin Dynasty, Fusu, just as Ying Zheng was patrolling the east and overseeing the country. He changed his original owner's pedantic nature. He first killed Zhao Gao to establish his authority, and then introduced the curved shaft plow and waterwheel to solve the food crisis. He used the national debt strategy to fill the national treasury and took the lead in developing the three crops a year land in Lingnan. Faced with the remnants of the Six Kingdoms, hundreds of schools of thought, and other forces, he relied on his forward thinking and iron-blooded methods to stabilize the government and unite the people's hearts. He not only gave the Qin Dynasty, which was on the verge of collapse, new opportunities, but in the father-son game with the First Emperor, he gradually laid the foundation for the Qin Dynasty for generations and opened a different chapter of prosperity.