Emperor Chongji of Dayou set up an ambush to attack Shen Qianchi, the crown prince of Juze Domain. During the battle, Shen Qianchi and his newly married crown prince, Princess Yanrong Murong Yan, were both killed. Juze officially became the territory of Dayou. Two years later, Murong Yan, who was supposed to have drowned, disguised herself as a man and returned to the capital of Dayou, pretending to be her twin brother Murong Jiu. With an unknown purpose, with the help of her childhood sweetheart Ji Che, the young gang leader of the Hongshui Gang, she went into the upper class society of the capital, and got acquainted with Wei Nange, the elegant chief assistant of Wenyuan Pavilion, Fengyuan, the mysterious masked prince, and others. Little did she know that these people had their own purposes in approaching her. On the eve of the crown prince's succession, a strange storm is about to hit.
