In the late Jiajing period, the palace maid Shen Qingyi, 14 years old, worked as a sweeper in the palace of the disgraced Concubine Wu. She has a delicate appearance, a seemingly timid and docile personality, and has good medical skills that are unknown to others. How a smart man who is forced to walk on the edge of a cliff uses rules or even creates rules to finally turn the cliff into a broad road.