Valerie Parker has her dream job. Assistant interior designer at Seung Designs for the well-to-do of San Francisco. And she just got handed her biggest client. Too bad her boss leaves out some key points of the design.Park Jung-hyun. Millionaire, almost billionaire, and Valerie's new client drops a bomb on her creation. He needs his apartment to look like a girlfriend, who doesn't exist, lives with him.What?!Her job goes from crazy to full blown mental when, to cover up his lie, Jung-hyun tells his mother Valerie is his girlfriend. That's when they make a deal.One contract. Two dates a week. Five months to make it believable.But what happens when the line between fake and real feelings starts to blur? Could they possibly be a Matching Set?