Yoo Yeon Suk The Writings of Nine Houses is an upcoming fantasy drama starring Lee Seung Gi that will air after the conclusion of Horse Doctor. Yoo Yeon Suk, who was in the film Oldboy, and most recently A Werewolf Boy starring Song Joong Ki, has just been cast to play Lee Seung Gi's rival, Park Tae Seo! Not only is he pretty to look at, but supposedly his character is skilled in martial arts, and swinging a sword. Any Yoo Yeon Suk fans out there? KrisE! ?@K_Kisses_KrisE (Source: enewsworld.mnet.com)