Zheng Quchi, an expert in civil engineering, accidentally traveled to ancient times, and became the ugly second child of a carpenter's family who disguised himself as a man. He was arrested as soon as he woke up: the government forcibly recruited craftsmen from all over the county to build military camps? They are good at these things, they can build river canals, peak fire towers, and build all kinds of equipment... The craftsmen in the countryside are all confused, and neither can we! Zheng Quchi: Hey, this is not professional. There are very few craftsmen who really understand technology in Daye Kingdom. From the basics to the military, they all rely on foreign imports. If there is not a god-like General Yuwen sitting in the town, they will have been divided and occupied by the enemy. Yu Wensheng thought that Zheng Quchi was just a small Later, the carpenter both fell off the horse, and he witnessed with pride that she challenged the top architects, shipbuilders, and car builders of the seven countries with one person's strength... and returned with a complete victory. On the fortress built by masonry, why not go to war for you and die generously for you? ——Then behind you, there must be a military power built by me and me, cheering for you and helping you to be invincible.