Synopsis：Civil engineer Shen Yanzhou wakes up in war-torn ancient Dazhao as a poor concubine-born son, surrounded by starving refugees and a crumbling temple. When his Infrastructure System activates, he burns lime, refines cement, builds roads and canals, resettling hundreds of thousands and rebuilding cities. Merchant Su Wantang spreads his new laws and cement technology across seven provinces; the emperor both relies on and fears him, aristocratic clans loathe yet cannot stop him, and as blueprints unfurl and concrete hardens, the fate of an entire dynasty is quietly rewritten.