A modern soul travels back in time to Haizhou during the Republic of China era. Shen Yan becomes a wastrel who has squandered his family's fortune and is even subjected to a broken engagement. Armed with forward-thinking ideas, he overcomes a shortage of funds and establishes Huaguang, a domestic goods brand. Facing monopolistic suppression and false accusations from Smith of a foreign trading company, as well as the manipulation and schemes of Huo Tingzhang, Shen Yan breaks through with superior products and an innovative mail-order business model, joining forces with Chinese merchants to establish an industrial alliance. After enduring imprisonment, the burning of his factory, and numerous other crises, he gathers irrefutable evidence to bring down corrupt officials and foreign merchants, awakens the public to boycott foreign goods, and clears his tarnished reputation. Ultimately, he defeats all opposing forces, builds a vast domestic industrial empire, finds true love, and becomes a revered symbol of Chinese-made products.