The Medical Daughter of a Noble Family Who Dotes on the Concubine

She traveled through time and became the only legitimate daughter of the Marquis. Her father was biased, her mother was weak, her aunt was plotting, her concubine framed her, and she also had a stupid younger brother who couldn't distinguish between inside and outside and turned his elbows outward! Fortunately, God had given her a golden finger, so all the things she encountered were nothing to worry about. With her good medical skills, she was able to have a baby by a lucky man. What, the emperor granted her a marriage to his nephew who was frail and sick, had a bad fate and killed three wives? Is this a way for her to remain a widow? A certain king: Madam, the instrument is big and lasts a long time. You are welcome to inspect the goods. A certain woman: Back pain...