Xiao Chengyu, a graduate student in the Department of Modern History, traveled through time and became a prince of the subjugated Southern Chu State. He awakened to the "Destiny to Build the Nation System" and issued tasks such as "recruiting refugees," "rectifying armaments," and "reforming bad government." By completing the tasks, he could acquire modern knowledge and ancient secrets such as military art, medicine, and steelmaking. On the surface, he pretended to be crazy and acted like a fool to evade pursuit, but in fact, he secretly gathered dead soldiers, used modern economics to establish business alliances, and used "Sun Tzu's Art of War" to transform the frontier army. He successively outsmarted the hypocritical regent of Northern Yan, the green tea-type surrender of Southern Chu, the blackened princess of the former dynasty, and recruited ten beauties including a Valkyrie-level general and a hermit's daughter who was proficient in machinecraft. From a down-and-out prince to a vassal, to sweeping through the troubled times, and finally establishing the "Great Xia Dynasty", using the "equal land system" and "imperial examination reform" to end the thousand-year-old clan, and achieve a change of destiny.
