Countess Yumemi was a magical prodigy destined to become the kingdom's first female Magic Knight, until the king forced her into a political marriage. Her jealous husband sealed her immense power and free will with a cursed ring, leaving her abused, broken, and treated as worthless. After a near-fatal fall erases her memories of married life, the curse is shattered. Unaware her tormentors still believe she's powerless, Yumemi reclaims her unmatched magic and begins a thrilling, ruthless revenge against everyone who stole her future.