During the Jianwen period of the Ming Dynasty, the government was in turmoil and the vassal kings were in danger. Zhu Huimin, the princess of Yanwang, and Li Zhennan, the eldest son of the deputy general, have been childhood sweethearts since childhood. Later, due to the emperor's reduction of vassal status, the King of Yan was in trouble... Fifteen years later, Li Zhennan followed the emperor's grandson Zhu Zhanji to fight in the north and south. He was granted the title of marquis for his military merits and asked to marry the princess. Emperor Yongle issued an order to grant the marriage...