drama directed by  Yoon Seok-Ho . The series started airing on the Korean network  KBS2  on March 26, 2012. It stars  Jang Keun Suk  &  Girls' Generation 's  Im Yoona . The drama reunites director Yoon Suk Ho and screenwriter Oh Soo Yun of  Autumn in My Heart  and  Winter Sonata  for