OK, just finished watching. Haven't read comments so maybe I'll feel stupid later, but here goes:

I found this to be painfully slow and full of itself, as if by just being on screen it had somehow already proved its worth, so there was no need to let me know what was going on.
Constant smoking does not replace quality acting. Not that the smoker is a bad actor, but that kind of 'movie smoking' is such a cliche.
The other character didn't smoke so he chewed gum in a deeply meaningful, sort of Clint Eastwood-type way.
Walking extremely slowly in silence does not always replace dialogue or plot, especially when its repeated over and over.
One of those films that presents being gay as the worst thing on earth, and maybe it is in Korea, I wouldn't be surprised by that, but offers no hope, no route to something better, no nothing.
Why on earth would orange jacket keep pursuing the gum chewer? Boring, arrogant, uncommunicative, weird, sullen, sulky, and he should have picked up on all that in the first five minutes. It was downhill from there, yet he kept after him. Why? I didn't find that believable.
I thought orange jacket had a limp at the beginning? Where'd that go? I though we were in an extended flashback but that turned out not to be the case.
Meh...whatever. There's so many much better films out there.