On the wedding day, she changed her name to the prince and sat on the sedan chair, becoming the mysterious princess of the Prince Regent's Palace. The mansion is surrounded by dangers, and the secret assassins in the court are hard to guard against. She protects herself and others with her unique skills in controlling poison, and unexpectedly discovers that her own blood can alleviate the regent's strange disease.
The cold-faced King of Hell gradually transforms into a maniac who loves his wife, clearing obstacles and supporting her. Shen Li used the palace as a shield to tear apart scumbag men and women, expose family conspiracies, and play tricks in the capital. In the end, the "living dead" who climbed out of the mass grave became the favorite of the palace, and joined hands with the regent to rule the world, starting a sweet and sad life in both directions.