or maybe he resents him for some reason and this is his way of getting back at him? those are the two common tropes usually.
Oooohhh that would be good too I think better than the I’ve known you n liked you for awhile one
Hmmmm you may be right, but don't that feel stange having the picture of someone you resent in your bedroom?
it's so that he would never forget. time tends dim negative emotions so the picture is there to keep reminding him of his "mission" lets call it.
but then again, i'm only saying all this from my experience as an avid yaoi reader. its all assumption
Lol true I’m guessing in this case he is more the I’ve liked you a while type based on the hints the mangaka gave us
I think director Park have feelings for mr Lee for a while