The Villain and the Demon Princess

After the disappearance of their daughter, the first princess of Asdefor, the king and queen adopted Valentina Befort. She grew up loved by her new family. But everything falls apart when the true daughter of the king and queen is found. Not only does she take away their love, but she also captures the attention of Valentina's fiancé, turning Valentina into the cruel villainess who envies her sister and tries to kill her.
Her fate is death for her crime against the real princess, but the story doesn't end with a happy ending, as the protagonists meet their end at the hands of the cruel villain, Maximiliam Chevalier. But now, another soul has reincarnated in Valentina, and she is determined not to have a miserable end because of those who betrayed her. In search of survival, she will approach Maximiliam, the villain, who seems to be her best chance to change her fate.
Her closeness to him will lead her to discover her true origins. Will Valentina be able to escape her miserable destiny?