The Maiden of the Sacred Seal ~The Marquis's Daughter Aims to Be a High Healer~

Anna Hiiragi, a researcher at the Pharmaceutical Institute, died one day after being bitten by a snake while studying snake venom. When she opened her eyes, she had been reincarnated as Letitia, the daughter of a marquis in the Orgaria Empire on the otherworldly continent of Aurelian! Though confused by her reincarnation, Anna resolved to become a healer to save many people in this new world as well. While using her innate intelligence and magic to carry out activities to save the people, she caught the attention of the crown prince and a knight...
https://www.cmoa.jp/title/334114/