There is a turbulent undercurrent in the Wei Dynasty. The puppet emperor Qi Xuan tightens the sleeves of his dragon robe and tries to use the marriage in southern Xinjiang to check and balance the power of the regent Yu Qinghuai. Little does he know that this king with a different surname who uses iron-blooded means to evade the royal family is by no means an "evil god" who can be restrained by marriage alone. His life experience is far more secret than the rumors of "the disciple of the old prime minister".
The king of Southern Xinjiang brought his two daughters to a banquet. The eldest princess Mu Ruolan wanted to marry into the regent's palace and tried her best to exclude her younger sister. However, she did not expect that Mu Lingyu, who she regarded as "favoured and incompetent", was not only responsible for the secret poison of Southern Xinjiang, but also had an unknown purpose. At the banquet, Mu Lingyu was deliberately absent, which made Mu Ruolan's plan fail. Yu Qinghuai, who was leaving the banquet, unexpectedly met this "naughty" little princess under the lilac tree in the imperial garden.
On one side is a man in power whose identity is a mystery, and on the other side is the princess of Southern Xinjiang who possesses special skills and hides herself from the world. When Qi Xuan and An Qinfeng's calculations and Mu Ruolan's jealousy are intertwined, this seemingly ordinary marriage banquet has actually become a wrestling field for all parties to hide their identities and ambitions. No one expected that the encounter between the two would completely rewrite the fate of the Wei Dynasty and Southern Xinjiang.
