The story takes place in an imaginary ancient dynasty - the Kyushu Dynasty. The unpopular prince Xie Yun lost his mother when he was young and suffered bullying in the cold palace. In order to survive, he had to move step by step and be cautious. By chance, he met Xiao Wanqing, the legitimate daughter of the prime minister's palace. The two supported each other during the court struggle and gradually developed feelings. In order to regain everything that belongs to him, Xie Yun began his journey of revenge. He contacted various forces and secretly accumulated strength. Finally, with the help of Li Mu, the commander of the Forbidden Army, he successfully launched a coup and ascended the throne as emperor. However, the throne is not the end, but a new starting point. Faced with the strife of powerful officials in the court and the intrigues in the harem, Xie Yun must always remain vigilant in order to hold on to his throne and protect the people he loves. The story revolves around Xie Yun's growth process, showing all living beings under the influence of imperial power, as well as the complexity and multifaceted nature of human nature.