The story tells the story of how the unpopular prince Jing Lang ascended to the throne step by step by relying on his wisdom and forbearance in a crisis-ridden palace, and ultimately changed the fate of the country. In the story, Jing Lang not only has to face the overt and covert struggles from other princes, but also the constraints of the powerful officials in the court and the intrigues of the concubines in the harem. In the process, he met allies such as Xie Huaijin and Xiao Sheng, and encountered opponents such as Liu Ruyan and Zhao Su. Through a series of power struggles and life-and-death tests, Jing Lang gradually grew into a true emperor. But the acquisition of imperial power also cost him a huge price. He began to reflect on the meaning of power and tried to use his own way to bring real welfare to the country and the people.