When Lin Feng, a craftsman from another world, brought the wisdom of later generations to the end of the Warring States Period, the gears of Da Qin's destiny began to quietly turn. The curved shaft plow turned over new soil in Guanzhong, the hydraulic rice pounder played a new chapter in agricultural efficiency, the beacon code lit up the northern defense line, and movable type printing laid out the blueprint for reform. This craftsman from the future, with ingenuity as the blade and ingenuity as the front, set off a New Deal storm that swept across the Qin Dynasty with the support of Ying Zheng.