Wei Ming, an overworked e-commerce employee from Northeast China, dies suddenly after working through the night and finds himself transported to the fictional Great Yong Dynasty, where he is destitute and burdened with debt. Drawing on modern corporate management, risk control, and business strategies, he joins forces with Su He, a young chemical engineering enthusiast; Yao Hua, a princess with a passion for navigation; and Chu Ling, a master of intelligence gathering, to assist the patient and calculating young Xuan Chen. Starting out in business, Wei Ming improves manufacturing techniques, establishes trade networks, and builds an intelligence network, while confronting the threat of a coup led by the powerful minister Ao Lin. At home, he reforms the tax system, establishes modern-style schools, and reconciles the imperial court with the martial world. Abroad, he opens ocean trade routes and builds an autonomous overseas city. Through it all, he lives out an extraordinary and fulfilling life after time-traveling to the past. His catchphrase? 'Oh my goodness!'