What? Did the Prince and I Swap?

"On the day of the assassination, the prince and I exchanged bodies. Now, I am the noble prince with no martial arts skills, and he is the cold-faced female killer who takes my place. " Jiang Yue, a modern surgeon, was stabbed in the chest the next second after dressing up as an assassin. When she opened her eyes, she turned into Xie Yan, the prince of Anguo Gong - a man whose identity is a mystery and whose enemies are everywhere. And her own body was being taken over by Xie Yan with a cold face, becoming her most personal "female guard". In order to get their bodies back, the two are forced to form an alliance. She pretended to be noble in the court despite her status as the crown prince, but in fact she couldn't even hold the sword steady; he hid in his skirt and hairpin to protect her from hidden arrows, but he had to endure the pain of Guishui to the point where he couldn't hold the sword steady. When assassinations and conspiracies follow one after another, the two support each other on the edge of life and death, but gradually discover that—— This dislocation may have been a killing move planned by someone early.