Betrothal broken!!! Lady Richell, a duke's daughter, has her engagement to the first prince unilaterally broken off. Falsely accused of a crime, Richell was originally promised to another—her beloved. But then, a divine prophecy declares her a 'saintess,' derailing her life. Forced to break off her engagement and become engaged to Prince Garsha instead, reality proves cruel. Richell cannot use the saintess's powers, and another girl, Maria, emerges with these abilities. Branded a false saintess, Richell suffers injustice. After her beloved is stolen by Maria and the prince, and she is subjected to torture-like violence for their mistakes, Richell and her loved ones are sent to the executioner's block. Executed without a proper trial, Richell vows revenge, even selling her soul to become a vengeful spirit. This is a common reincarnation story, but the focus is on the heroine's journey of opening her heart to the hero. A girl who didn't know how to rely on others finds the courage to do so with the hero's help, achieving revenge in this life.