I recommend The Poisonous Doctor: Your Highness, You Haven't Drank Your Medicine! This book was an ancient romance novel written by the author, Xianer Mama. In the novel, the female lead was the doctor, and the male lead was the prince. There was a hereditary disease in the family that needed the female lead to make medicine to treat it. The female protagonist had mixed her thoughts into the prescription, and the male protagonist gradually developed feelings for her. The plot of this novel is interesting and the writing is smooth. The female lead has a strong standpoint and opinion, while the male lead is a cold elite. I believe it will suit your taste very well. I hope you like my recommendation.