After years of hiding his brilliance as a loyal executive aide, Yun Taesik finally has the chance to face the superiors who once stole his work and destroyed his reputation. He secures his seat as the new Division Director through a high-stakes, 10-billion-won contract marriage to his boss, Kang Munjeong—the fierce legitimate heir fighting to keep her empire from her illegitimate brother. But as he steps into the spotlight to claim his revenge—can Taesik survive the cutthroat succession war while navigating a fake marriage that feels increasingly real?