Su Heng traveled to the Tang Dynasty, and was assigned to the poorest weapons supervisor at the beginning. One hundred thousand Turkic cavalry came to the city, and someone in the court actually proposed to cede territory for peace! He silently took out the blueprint, and three days later, a roaring steel beast crushed the enemy camp. When Li Shimin tremblingly touched the cold barrel, the whole world thought it was Lu Ban's resurrection - only Su Heng knew that this was just the first prototype he pulled out of the warehouse.
