Li Mo, a modern civil engineer, was reborn as an exiled criminal during the Zhenguan period. In this wild border town, he relied on his engineering wisdom spanning thousands of years to turn stone into gold and turn decay into magic. From a bowl of water and a solid wall to a thoroughfare and a sharp weapon, he uses technology as a sword to cut through all contempt and obstacles. Let's see how an engineer used the most hard-core infrastructure to build the cornerstone of the most prosperous era of the Tang Dynasty, and quietly ignited an industrial dawn that subverted the era.