The Unscrupulous Princess Is a Poisonous Person in the World.

He is the useless prince of the current dynasty, and she is a famous medicine pot. He pretended to be stupid and she was stunned. He was playing tricks behind his back, and she was poisoning people secretly. The two of them joined forces to fight against treacherous ministers at the top and so-called relatives at the bottom. Layers of the puzzle were constantly uncovered. When it was revealed that she was an orphan from the previous dynasty. He only said: I only recognize her as my crown princess!