I recommend "I Compete with the Ancients in Acting" to you. It's also a transmigration novel. The female protagonist needed the heart blood of the man born on the same day to make up for her hidden illness, while the male protagonist needed the female protagonist to suck his heart blood to save his life. The two were mutually poisonous and antidotes. In their emotional entanglement, the female protagonist showed her strength and courage. I hope you like this fairy's recommendation. Muah ~😗