I Lead Great Qin to Sweep the World

Modern Fang Zheng accidentally time-travels to the Warring States period, landing in a desolate wilderness in the 40th year of King Zhaoxiang of Qin. With a vast repository of modern knowledge and a bag of high-yield crop seeds, he breaks the food bottleneck with potatoes, corn, and sweet potatoes, and reshapes Qin's foundation through salt-making, iron-smelting, agricultural tool innovation, and water conservancy projects. Using his advanced knowledge, he stirs the Warring States, propelling Qin to dominate the six states, and personally raises the young Ying Zheng, teaching him statecraft and expanding his global vision. In this life, the Qin iron cavalry will break all boundaries, sweep the world, and forge an immortal empire far surpassing history, planting Qin's flag on every inch of the globe!