griffinwade

I really think that here is the same plot as in the "oldboy". Initially Gi O Sung manipulated Park Won Seok, but after Won Seok finds out that Gi O Sung has a crush on Kook Jihyun (or Seok Jae Beom, if its gay storyline) stopped serving him. As a result of which Gi O Sung killed Park Won Seok

Russian word "мудак" which means "asshole"