Seventeen-year-old Marissa, a marquis's daughter, has been plotting her revenge against her uncle's family ever since they took over her mansion after her parents' death. On her eighteenth birthday, the title and estate will be returned to her, and she has been enduring mistreatment at both home and school in anticipation of that day, when she can exact her vengeance. One day, her fiancé, Delior, breaks off their engagement, claiming to be in love with her cousin Roxanne, her uncle's daughter, whom he believes to be his destined partner. Marissa, never fond of Delior, welcomes the broken engagement and vows to include him in her grand revenge against her uncle's family. Though her spirit is strong, years of abuse have left her physically frail. Concerned for her wellbeing, her classmate, the kingdom's third prince, Raid, begins to support her after the engagement is broken. As Raid draws closer to Marissa, the two form a bond that may change the course of her life and her plans for revenge.