It tells the story of Xiao Jinyu, an unfavored prince, who ascended to the throne step by step in a palace that was filled with surprises, relying on his extraordinary wisdom and forbearance, as well as the help of loyal people. He fell in love with Lu Wanqing, the daughter of the prime minister, but had to face the cruelty of the power struggle. He launched a fierce power struggle with the ambitious Ning Wang Xiao Sheng, and finally defeated his opponent and became a wise king. However, the peak of power also means loneliness and helplessness. He needs to balance the forces of all parties and face the intrigues of the court and the threats from enemy countries. In the whirlpool of intrigues, can he stick to his original intention and realize his ideals?