All powerful rejected daughter forced to marry aloft cold duke

Abandoned in a forgotten village, Lady Seraphina was left to rot by her noble family, her stunning beauty and sharp mind deemed liabilities. But the wilds forged her anew: a martial arts master, a healing prodigy, and a shrewd entrepreneur. From the shadows, she built an empire, commanding a loyal network of assassins and cultivating powerful alliances that spanned the kingdom, unknown to her cruel kin. Her serene seclusion shatters when she's forcibly dragged back to court, a pawn forced to marry the notoriously aloof and frigid Duke Kaelen, all to save her spiteful half-sister from an unwanted betrothal. Seraphina must navigate treacherous court politics, hide her terrifying true strength, and protect everything she's built, all while an undeniable tension sparks with her enigmatic, cold-hearted fiancé.