Thrown into the world of her favorite novel, The Crown's Shadow, a modern girl wakes up as Lady Anastasia Valemont, the infamous villainess doomed to a tragic end. Determined to rewrite her destiny, she must navigate shifting alliances, a treacherous family dynamic, and a fiancé whose sudden warmth leaves her questioning everything. As secrets from the past resurface and the lines between friend and foe blur, Anastasia learns that survival in this gilded cage requires more than wit—it demands courage, sacrifice, and perhaps even love.