Qiu Ge, a disciple of the master of traditional Chinese medicine who accidentally travels to Dayi Dynasty, encounters a powerful official of the current dynasty. In the bloody and ruthless legend, what kind of person is he who is incomplete? Is he really the murderous and cold-hearted Emperor Yinggu? Or is he the patient who is exhausted both mentally and physically and just wants her to be by his side to give him a good night's sleep?