Princess Mu of Prince Mu of Yunnan, a talented commander in charge of 100,000 border defense cavalry in the southern border of Daliang Kingdom, and the fiancée of Lin Shu's childhood sweetheart.At that time, the powerful enemy Chu State in the south of Daliang raised troops. After the Yunnan Wang Mu Shen, who was in charge of the southern border defense, died in the battle, Nihuang was ordered to face the danger. The whole army met the enemy, and the Chu cavalry fought bloody battles at Qingming Pass, wiping out 30,000 enemies. From then on, he guarded the southern border on behalf of his younger brother.The entire army in the southern region came under his command.