During the Jianwen reign of the Ming dynasty, the court is in turmoil and the vassal princes live in fear. Zhu Huimin, the Yan Prince’s daughter, and Li Zhennan, the eldest son of his deputy general, grow up as childhood sweethearts, innocent and inseparable. Then the emperor moves to strip the vassal princes of their power, and the Prince of Yan launches his campaign to restore order under Heaven... Fifteen years later, Li Zhennan follows the imperial grandson Zhu Zhanji through campaigns across the south and north. His military achievements earn him a title of nobility, and he seeks the hand of a princess. The Yongle Emperor issues an edict granting the marriage...