She is the daughter of the president of the Taiyuan Hospital. She has great medical skills but is not allowed to enter the official position because of her status as a woman. After her family was destroyed, she was sent to the palace to become the lowest medical girl. She was bullied by the concubine, designed by the noble concubine, and tested by the queen mother, and she was shocked at every step. When the seriously ill prince's life hangs on a thread, and the doctors are helpless, she turns the tide with one shot. From then on, the situation in the harem changed and the undercurrent in the court surged. She used her silver needle as a knife and her medical skills as a sword to fight her way through the cannibal palace. But why did that aloof emperor look at her with more and more dangerous eyes?