Mr. Duke

Soo Jin is the beautiful daughter of a rich enterprise owner, President Jang. She was tricked into returning to Seoul from studying abroad as her father wanted her to get married. Soo Jin couldn't stand her father's matchmaking candidates and concocted a scheme with her secretary Park Ae Ja to hire someone pretending to have all the qualities that her father wanted. They ended up having Kim Yong Nam to be someone he was not; well educated, rich and sophisticated. But in reality, he is a water bo (mydramalist.com)