Zhao Tiezhu, the chief engineer of modern infrastructure, opened his eyes and became a corvee in the Qin Dynasty, being whipped to build the Great Wall. He casually produced cement and pulleys, alerting the First Emperor Ying Zheng. Ying Zheng Long was so happy that he named him the "Supervisor", but when he turned around, he found that Zhao Tiezhu actually wanted to use a "tunnel" to pass through Mount Tai and use "rails" to replace the Chi Road - this was not a construction project, it was clearly digging his own dragon veins! Ying Zheng cried and begged him not to build it, but Zhao Tiezhu looked at the construction site in front of him and had only one thought in his mind: I, the infrastructure madman, have to finish the construction period even if I die today! When the Great Wall, Afang Palace, and Lishan Mausoleum were transformed beyond recognition in his hands, a bigger secret emerged: This Qin Dynasty seemed to hide more than one time traveler...
