Married To The Arrogant Billionaire Heir

One face. Two lives. A marriage built on a deadly lie. Grace thought the hardest part of her life was being an orphan—until she discovered she wasn’t one. Found by the wealthy biological family who abandoned her, Grace isn’t greeted with open arms. Instead, she’s greeted with a cold-blooded ultimatum: Become your sister, or watch your adoptive mother rot in a prison cell. To save the only woman who ever loved her, Grace must step into the designer life of her twin, Isabella. That means navigating a world of backstabbing elites and, most dangerously, marrying Sebastian Vane. Sebastian is a man who rules with iron and ice. He doesn't want a partner, he wants a contract. He doesn't want love, he wants a pawn to secure his empire. “No love. No expectations. No children,” he warns. Grace is happy to oblige. After all, she isn't even the woman he thinks he’s marrying. But as the lines between her life and Isabella's begin to blur, Grace realizes that Sebastian is hiding secrets of his own—secrets that link their families in a web of blood and betrayal. Now, trapped in a golden cage with a man who sees everything, Grace has to play the performance of a lifetime. Because if Sebastian finds out she’s an impostor, he won't just break the contract—he’ll break her. She’s living her sister’s life. She’s sleeping in her sister’s bed. But can she survive her sister’s husband?