Modern youth Shen Yan is unemployed and in debt, accidentally activating an ancestral jade tablet and binding to the Ancestral Card-Drawing System. Completing tasks to provide for the ancestors allows him to draw skill cards, but his very first card draw yields only primary fire-starting skills, and he is directly time-traveled to ancient times, landing in his own ancestor Shen Zhaolin's dilapidated old Shen residence. At that time, the Shen family business had declined and was burdened with massive debts. Relying on system cards and modern business thinking, Shen Yan fights side by side with Shen Zhaolin. He bypasses the layers of business suppression from his rival Gu Chengye, refuses to blindly follow the destiny nodes given by the system, exploits rule loopholes, reforms the management model, and builds an independent commercial route composed of scattered sources of goods.