Shen Zhiwei, the daughter of the guilty minister, lost her father in the execution ground. In a desperate situation, she awakened the ability to identify poisons and the medicine house space. She entered the palace alone and worked step by step. She and the forbearing emperor Xiao Heng tested each other in both directions, checked each other, and joined forces to break the situation. The whole story revolves around the palace's poisonous plots, old injustice cases, and the game between Cui's power and the party. It is a non-stop and satisfying story, focusing on the pull of people's hearts and the checks and balances in the palace.