Edit: oh pfff sorry I made a mistake and was checking somebody else's drama list, not yours... Sorry if you have already seen these!It's such a shame that it's rare :^/ I would recommend Shut Up Flower Boy Band, only you already saw that one...
Once I answered a question titled "Show with punks?", maybe this helps:
http://mydramalist.com/discussions/general-asia-fo...Ah, I also remember the girl in "Yamato Nadeshiko Shichi Henge" dressing all in black. Now that I look at it again, it was exaggerated though, haha.
(Same goes for "Kimi ni Todoke", only it looks like you're not really into japanese dramas/movies.)
JaeJoong often looks emo, though. Especially in "Postman To Heaven".
I always thought Lee Soo Hyuk often looks emo, too. I haven't watched "Vampire Idol", but they seem to dress in a kinda edgy, blackish style (though it looks pretty weird, hahaha...)