This movie was on my "To watch" list for so long since I read it was among the highest grossing movies in south Korean Cinema history . It was a highly enjoyable watch. The story was the least expected, with a bunch of laughs and at some moments tears. Thrilling parts were also very well done. Most of the characters were very interesting, but I especially enjoyed the two male leads duo a lot. Goes without saying, Song Joong Ki's cameo at the final scene simply ROCKED!!!