Peng Xiaoran (Goodbye My Princess) plays an intelligent princess who specialises in medicine in Jun Jiuling 君九龄. After her family is murdered, she takes on a new identity and begins her own secret investigations in an attempt to unravel the political conspiracy. Jin Han (Royal Nirvana) plays her childhood sweetheart and future love interest Zhu Zan.

Based on Xixing’s novel of the same name, the drama is written by Li Mingchao (Buliangren) and directed by Xie Ze (Legend of Fuyao).