Accidentally Married to my Sister's Fiance

She was never meant to be his bride. But fate had other plans. Arielle Bennett has spent her entire life living in the shadow of her beautiful older sister, Vanessa. Always overlooked and never anyone's first choice, Arielle has learned to sacrifice her happiness for her family. When Vanessa mysteriously disappears on her wedding day, leaving billionaire Alexander Blackwood humiliated at the altar, Arielle's family forces her to take her sister's place to save their reputation and failing business. Alexander, a cold and ruthless CEO who despises betrayal, agrees to the marriage under one condition: No love, no expectations, and no emotional attachments. Their marriage is nothing more than a one-year contract. But living under the same roof proves more complicated than either imagined. As arguments turn into understanding and unexpected feelings begin to grow, Alexander discovers that his unwanted bride possesses something money cannot buy—a genuine heart. Just when Arielle begins believing their marriage could become real, Vanessa suddenly returns, determined to reclaim the life she abandoned. Worse, Arielle discovers a devastating secret connecting Alexander to her sister's disappearance. Caught between love, betrayal, and painful truths, Arielle must decide whether to fight for her marriage or finally choose herself. Alexander married her to save his reputation. But when she walks away, will the billionaire who has everything realize that the one thing he cannot afford to lose is his wife?