In order to save his younger brother who was seriously ill and dying, Su Shuheng, a folk miracle doctor, resolutely entered the imperial hospital to be selected. I thought I could get good medicine with my superb medical skills, but unexpectedly I got caught up in a weird poisoning case. The queen died suddenly, and all the evidence pointed to her. Su Shuheng instantly changed from a rescuer to a prisoner. In a desperate situation, she discovered that the murder case was hiddenly related to her brother's illness, and there was a terrifying conspiracy behind the selection from the hospital. In order to clear her grievances and save her loved ones, she used the silver needle as a blade and the medical classics as a shield to work her way through the turbulent palace, but she didn't know that she had already become a pawn in the game between multiple forces. When the truth gradually emerges, how will she choose?