Billionaire Contract Marriage for Heirs

A penniless heiress makes a desperate bargain: she signs a contract marriage with a cold, ruthless billionaire so she can pay for the treatment her dying sister needs. Their arrangement is strictly business, but the rules of the deal start to blur as the two of them are pulled into each other's orbit. Her plan to protect her family is tested by a man who has every reason to keep her at arm's length.