The Legitimate Daughter of the Miracle Doctor: Where Can the Prince Escape?

She was originally a medical genius in the 21st century, but she was killed by an adulterer. He accidentally traveled to ancient times and became the burial object of a super handsome prince. Go ahead, this is too... Unlucky. He was so handsome and died of illness? What a waste of natural resources! Fortunately, she has a medical system, can she save him? A piece of cake! However, she never expected that this sick prince would insist on making a promise with his heart...