The basis of the heroine's medical skills is not "observation, hearing, inquiry, and diagnosis" but "sound wave resonance diagnostic technique." She practices a lost qigong mental method, which can condense the true energy into special sound waves and inject them into the patient's body. Based on the frequency and time delay of the echo, the disease focus and pain level can be determined. Not only that, she can use different "sounds" to heal injuries - syllables as soft as spring water can repair broken meridians, and syllables as sharp as an iron horse can shatter blood congestion in the body. The struggle scenes are not limited to the back house and the deep palace, but run through the "inner house → capital → court", using medical skills to save important officials in the court, win over people's hearts, gradually disintegrate the power of the stepmother, and finally enter the palace, becoming the most indispensable imperial doctor around the Queen Mother. But there is no free medical treatment in the world - she uses her voice to save people, and she also uses her voice to carve invisible "control keys". Those who are cured by her will tell the truth in front of the person she designates every full moon night.
