She is a declining official daughter and a descendant of poisonous medicine. She lives in hiding in the palace and lives an ignoble existence. He is a sickly and useless prince, trapped in an alley, dying, and everyone in the world can bully him.
With a transfer order, she stepped into a forbidden place and became his personal slave.
Everyone laughed at her for following a dying master, but they didn't know that her silver needle could determine life and death, and she could control the world with her bare hands.
He drank the poison she cooked, coughed up blood and chuckled: "You slave, you are quite interesting."
Assassinations, poisonings, and frame-ups followed one after another. She broke the game in a desperate situation, and he used his sick and weak body to make moves.
When the layers of disguise peeled off, she realized that this sick young man who seemed to be at the mercy of others was the one playing chess.
"How about cooperation?" He held the black piece and fell to Tianyuan, "I promise you that the phoenix will come to the world, and you will... Slaughter all the enemies for me."
The powerful team up, and the two cleans love each other. This was a play-by-play that started as a transaction, but at some point, it became a match made in heaven that meant life and death.