Su Wanyin, the daughter of a reclusive medical family, entered the palace as a concubine to avenge her mother. With her superb medical skills and straightforward and fierce personality, she exposed the concubine's conspiracy of poisoning and frame-up, leaving her opponents speechless; the evil emperor Xiao Jingheng already knew about her. Identity, deliberately indulged her "pampering", but actually used her "trouble" to eradicate the traitors in the court. The two gradually went in both directions during the palace battle. In the end, the heroine avenged her mother's revenge, and she and the emperor settled down together, becoming each other's "exclusive weakness".
