The heroine, who is a modern medicine and poisoner, travels back in time to become the legitimate daughter of a minister who was bullied. She is plotted by her stepmother and her scumbag fiancé at the beginning, and her innocence is almost destroyed. She broke off the engagement decisively and used her superb medical skills and poison to kill everyone. Not only did she uncover the unsolved case of her biological mother's murder and her brother's disappearance, but she also took advantage of the family's plan when they forced her to marry a dandy. On her wedding day, she used a trick to "substantiate the situation" and let the two vicious sisters who designed to frame her marry the wrong tyrannical scumbag and the cold-blooded prince respectively, causing her enemies to bite each other. At the same time, she reached a deal with the ascetic Eighth Prince, and joined forces on the road of conspiracy and revenge. In the end, she turned against the wind and fought back against the odds.
