In the Yunlan Kingdom, Qi King Li Yifeng returned in triumph with great military exploits. However, the situation in the court was changing, and the relationship between him and the emperor Li Lingchen was subtle and complicated. The two brothers were tit-for-tat in court affairs, and joined hands to fight against the enemy on the battlefield. Their emotions were intertwined in struggle and cooperation. The conspiracy and frame-up in the struggle for power, the common hatred in the face of foreign enemies, and the difficult choices in emotional entanglements constitute a magnificent and hilarious palace picture. Their stories are full of intrigues, battles, friendship and growth, and have left a profound mark on the history of Yunlan Kingdom.