Return of the Medical Concubine: The reborn legitimate daughter goes crazy and kills!

She was the most noble lady in the Great Yong Kingdom, but she was framed by her concubine sister, lost her innocence, and became pregnant. Her fiancé immediately broke off the engagement and imprisoned her in a dungeon. After giving birth to a dead fetus, she was given poisoned wine. When she opened her eyes, she was reborn as a young lady who was mistakenly exchanged back to the Yongning Palace... The notorious and arrogant daughter of the Meng family changed her dandy character and became proficient in piano, chess, calligraphy and painting, and had superb medical skills. Since then, she has taken revenge for her grievances and avenged her grievances... However, the dead fetus she gave birth to when she died tragically four years ago is still alive, poisoned and dying, and needs the blood of her biological father. But who was that person back then? ...