I Married the Demon-Poisoned Duke

Sinopsis

Elena Vale is forced to marry the paralyzed Duke Cassian Blackthorn, rumored to be dying from demon venom. She discovers her mother's Obsidian Blood Rite can suppress his poison—but each use transfers the corruption into her own body. As Elena secretly heals him, they uncover a conspiracy: Royal Physician Dorian Valeck and Regent Lord Malrec Voss poisoned Cassian to seize the Border Legion, while House Vale sold Elena as a pawn. Tracking down military ledgers and her mother Celeste's missing jou