The scumbag was secretly having an affair, while I was openly having an affair with the prince.

In their past life—they were childhood sweethearts, inseparable. He promised her a lifetime of love and devotion. Only when she was terminally ill and saw him kissing his adopted sister at her bedside did she realize that the entire marriage was a deception, and that every bowl of medicine she drank on their wedding night was poison meant to send her to her death! She died with her eyes wide open in disbelief! Reborn, she vowed to make the scumbag and the vile woman suffer a terrible fate—on the day of their marriage, she pointed at the disfigured man and declared resolutely, "Father, I saved Prince Cheng and had intimate relations with him. I can no longer fulfill my marriage agreement with Wei Yonghuai. In this life, I can only marry Prince Cheng!" Forced to act as a shield...