Transmigrated as the Villainess's Doomed Husband

Synopsis: 1. Wei Tan is overjoyed to have become engaged to the woman he loves. On his way home, his memories from his previous life suddenly return. He has transmigrated into a Mary Sue novel. The male lead is an unfavored prince raised in the Cold Palace, who endures humiliation and abuse from childhood before turning the tables with his extraordinary intelligence and skill, ultimately ascending to the throne. His fiancee is the vicious supporting female character, the legitimate daughter of the Great General Who Guards the Nation, a woman who commands troops and whose power makes her the talk of Shengjing. The vicious supporting female character is hopelessly in love with the male lead and does everything for him. To marry him legitimately, she will kill Wei Tan shortly after their wedding, hand over the Wei family's wealth, and help the male lead establish himself at court. Wei Tan calculates the dates and realizes he only has a few years left to live. 2. Wei Tan decides to bring the vicious supporting female character and the male lead together ahead of time. But the vicious supporting female character has been reborn and hates the male lead with all her heart. Not only does Wei Tan's plan to shower him with kindness fail completely, she pushes the male lead even further into danger. With no other choice, Wei Tan can only explain awkwardly, "She doesn't mean it... She actually cares about you, she just might not know how to show it. Don't blame her." The male lead obediently shakes his head. But as soon as Wei Tan turns away, his eyes darken. Whether someone is sincere or pretending, he sees it more clearly than anyone. As long as Wei Tan is genuinely kind to him, that's all he needs. The top is the original novel's male lead, with a dark, scheming heart and a madman streak. Warning: in his previous life, he had no feelings for the original novel's female lead. Later, the female lead will break off her engagement to the bottom. As usual, 1v1, both are pure in body and heart, and both are each other's first. The setting is completely fictional, utterly fictional, so fictional it barely exists. Theme: Live earnestly, and be free and at ease