Modern actuary Jiang Ling transmigrates into a debt-ridden prodigal young master, and upon waking up, faces debt collection and a broken engagement. Teaming up with female manager Su Qingwan, he launches Liuyun Brocade and establishes a supermarket, only to be step-by-step besieged by chamber of commerce giant Shen Wanshan. Faced with source blockades, the crisis of a snow disaster, and old family grievances, Jiang Ling goes from calculating only profit and loss to understanding responsibility, uniting with partners to complete the delivery of 300,000 dan of raw silk, defeating the Shen family and clearing his family's name. In the end, he and Su Qingwan tie the knot, reject monopoly, establish a fair commercial alliance, and counterattack from a universally despised prodigal son to become the richest man in the world.