Fake eunuch Zhao Wufeng relied on his good medical skills to deal with the relationship between the empress Xuanyuan Jing and the queen Dugu Mingyue. He accidentally discovered the secret of the empress's daughter's birth, and from then on he was involuntarily involved in the entanglement in the palace. While he was dealing with the concubines in the harem and resolving troubles for the empress, he was secretly investigating the cause of his third uncle's death. Amidst the undercurrents and unknown crises in the harem, he carefully looked for hope and worked step by step.
