Hu Sisi, the daughter of a minor official, was forced to enter the palace to be drafted, and became a "half-baked miracle doctor" by relying on the fragmentary modern medical knowledge from her previous life. She originally wanted to keep a low profile and survive, but accidentally saved the dying palace maid, which aroused the suspicion of the noble concubine. When the Tai Hospital concluded that the Queen's "strange disease" had no solution, she took the risk to use a simple microscope to find traces of parasites. The emperor Long Yan was delighted, but she was pushed to the forefront because of the reputation of "witchcraft".