In my opinion, this was a love story. A very... intreresting(?) love story.
First off, the story was a different kind of story... Two men, instead of a man and a woman, which is already a big thing, especially in South Korea. There was indeed some blood and violence as well... The character Youngwoo was the one that caught my attention the most, but I wish that we got to know him better. Besides the fact that he's an idol, we didn't know much more. Jaeha was as well a complex person and I feel like you couldn't put his role into a few minutes of chracter analysis. However the actors all did an amazing job... If I would rewatch this, it would be for the acting. I'll take this chance to promote Oh Seung Hoon, he's a rookie actor and this is his second role...! He did so well and hope to see him get more roles soon :)
Something that really bothered me is the fact that this movie was only 1h22min which is way too short for a movie with this much depth. The characters and the plot could've developed so much more if the movie was around 2 hours instead. It would've been a better story, easier to understand and probably more enjoyable to watch. The characters weren't those kinds of characters where you could basically guess what they would do next. While it's a good thing that the plot is not expectable, one should be able to say "ah, now that i see it, it does seem like something they would do".
In the end I actually enjoyed this movie very much, even though the ending left me a bit disappointed... However, I'll probably watch it again once the english subtitles are out...