I won't lie, the moment those elevator doors opened and go siwon's friend, whose name I cannot remember, appeared I just started laughing. My ribs hurt and everything. It might sound cruel but come on... did you see his face?? Maybe I'm mean cause I know he's a little hypocrite... Oh well... A good laugh it was.
When's the next update? Feels like I'm dieing slowly from the wait
The last chapter is here : http://koyukiya.tumblr.com/
Light novel maybe?