Kim Hee Sun is a genius, Rowoon is the only male actor today that could portray this character and Su Hyuk has the best arresting face. Casting was absolutely the thing that this show the success it is, along with some pretty damn good storytelling. And I dare to say that this is and will still be one of the best portrayed sexual tension in tv history. Also, the ending Hee Sun and Su Hyuk characters' had was like getting hit by a Mack truck. Did not see that coming. Ever. This one deserved, at least, another 10 episodes.