Short video blogger Lin Bei accidentally traveled to the Qin Dynasty and became a descendant of Yongcheng. Relying on the knowledge of ancient skills in his mind, he started from a piece of tofu, making steel knives, laying railroad tracks, making gunpowder, and building steam locomotives. He assisted the young Ying Zheng to unify the six countries, and even set his sights on the entire world - Rome, India, and the Mediterranean. After twenty-six years of journey, the railway track was laid from Xianyang to the city of Rome. This is not a history of conquest by one person, but a legend of a craftsman connecting two worlds with his hands.
