What a unique movie for its time. I had never heard of this movie until recently from a friend who loved it. Each of the four male characters have their own interesting backstories and past histories, but the most important is that of Sun-woo (played by Kim Jae Wook) and Jin Hyuk (played by Joo Ji Hoon). I think it was rather groundbreaking for its time to have an openly gay man who flaunts his sexuality and kissing scenes between two men. Yoo Ah In's character had an interesting backstory but since he was just a supporting character, the story was not elaborated on very much. What makes it unique is probably the 'hyperrealistic' or 'surrealistic' way in which the movie was shot, with strange musical numbers popping out of nowhere during which the characters express how they feel, instead of speaking it, or the way each character's memories fade in and out of reality, such that sometimes I don't know what is real or not. I personally did not like this because I became very confused about what was the truth. There is a bit of everything in this movie, such that it is difficult to pinpoint what genre this movie would fit into. It has comedy, romance, and some drama to it. Even though I am still utterly confused about the ending, I would recommend this movie as a 'chance card' watch - you won't know how you would feel about it until you have watched it.