A Prime Minister is Disguise

During a time of political transition, Huo Jing Heng announces Yue Ling Er, the sister of former chancellor Yue Chi, as his concubine. Concerned for his sister and the empire's stability, Yue Chi disguises himself to infiltrate the palace. He forms an unlikely alliance with Huo Jing Heng, and together, they uncover hidden threats while striving to protect the kingdom from its enemies.

(Source: TMDb)