The unpopular idea of "double cultivation of poison and medicine + numerology deduction". The heroine is not a "good doctor" in the traditional sense, but a "gray doctor" who is skilled in the use of poisons, understands power, and is proficient in astrology and numerology. She does not prescribe prescriptions to save people, but relies on "setting up a pharmacy" to reconstruct the power structure of the harem. Her golden finger does not lie in healing, but in "prejudgment" - she can predict the turning points of a person's life in advance through a person's birth date and the horoscope of the day, and then use drugs to control whether these turning points will occur. This makes her a "facilitator" in the harem struggle, rather than a warrior in the front line.