- Story background: The story takes place in the Dasheng Dynasty. The former Chu Dynasty was replaced by Dasheng. Gu Chengze, the orphan of the Chu royal family, became the prime minister of Dasheng incognito, with power over the government and the public. As a nomadic regime bordering Dasheng, Mobei is powerful and has a subtle game relationship with Dasheng. At this time, the crown prince of Mobei, Yelvzhao, led a delegation to Beijing to pay tribute on the surface, but in reality, there were hidden secrets. A power struggle surrounding power, secrets and national interests began.
- Main plot: Gu Chengze skillfully dealt with all forces in the court and concealed his identity as an orphan from the previous court. After Yeluzhao came to Beijing, he deliberately provoked him at the palace banquet and had his first confrontation with Gu Chengze. In subsequent contacts, the two tested and used each other, and unknowingly developed a complex emotional bond. As the plot progresses, the secret of Gu Chengze's life experience is facing the risk of being exposed, and Yelu Zhao also has his own mission and ambition. They will make difficult choices in the whirlpool of power and conspiracy, which will affect the situation between Dasheng and Mobei.
