Xia Tian, the ninth prince of Daxia, was stigmatized as foolish since childhood, suffered countless framings, and nearly lost his life on a snowy night. After escaping death, he traveled far to the barren Huangzhou. Externally, ten thousand iron cavalry of Tianlang press on the borders; internally, court factions plot against him step by step. Amidst desperate circumstances, he calculated every move, won over battle-hardened remnant soldiers, broke the deadlock and eliminated traitors through supreme medical skills and ingenious strategies, protected the border people, and transformed from a despised useless prince into the state-protecting Prince of Huangzhou guarding the western frontier.