I recommend the ancient romance novel," The Heavenly Doctor's Concubine: The Fourth Miss's Absolute Favor ", to you. The female lead, Rong Wu, was a goddess from the Upper Realm who excelled in both medicine and poison. She became the unfavored Fourth Miss of the Prime Minister's Estate in the Yunkun Continent. The male protagonist was the king of an enemy country. The two of them went from being enemies to walking hand in hand and gradually fell in love with each other. I hope you like my recommendation.😗