The former prince Li Xuan became a prisoner after the fall of the country, and was demoted to the bitter cold Yanmen Gate by the new emperor to guard the country. With the "Dynasty Hegemony System", he relied on the summoned war god Yue Fei and god-level materials to gather the remaining soldiers in a desperate situation, and defeated the 100,000 barbarian army with three thousand old, weak, sick and disabled. From a humiliated slave to subjugation to the lord of the North, Li Xuan vowed to take back everything that belonged to him.
