*nods* I understand about Kouc and Macchin. Koichi is also a bit of a casual guy. I can totally imagine a conversation between them some time later, going something like:
Macchin: *glares* Koichi, we need to talk.
Koichi: *blinks* Hey, I didn't take your coke, that was Tatsumi.
Macchin: Are you fucking kidding me?! I want to know what the fuck you mean with this... thing...
Koichi: Eh? What "thing"?
Macchin: *pouts* Well, that... between you and me.
Koichi: What about you and me?
Macchin: Well, what is it, now? What kind of relationship do we have?
Koichi: *blinks* What do you mean - you don't know? I kissed you, dammit. What - do you think I run around backstage grabbing people randomly and smooching them? I kissed you, so, naturally we're together now. Sheesh, Macchin, you can be such an awkward guy...

Okay, that was long, sorry. ^^

Oh, I think you got Matsu alright. In the docu he comes off as the kind of leader of MAD. Well... the Yu-chans anyway, as I have to admit I don't know the rest of MAD very well - but for those who are also in other groups like Veteran and TheyBudou. Oh, but I agree, Matsu is cool. ^^ I like Uchi-kun a lot too. <3

Aw, it's such a sweet and funny story. I'll read it again and again. :)))))))