wwwwww I mean OMK.
If this were animated, it’d be voiced by…
Kurosawa – The obvious choice is Fukuyama Jun (for some reason Kira Mamoru just doesn’t sound right here), but maybe there’s a more interesting choice?
Takagawa – Horie Yui. This choice is kind of cliche genki girl with bad past, a sort of lesser Minorin. Another choice is Katou Emiri. うふふふふふ
Kitahara – Takaba Ai (would be interested in her sadistic voice). I was thinking maybe Mizuki Nana…just because…but I’ve never heard Nana’s quiet yet slightly higher voice (compared to Fate and Touma): this makes me want to listen to Itazura na Kiss.
Nagaoka – Shiraishi Minoru (the other obvious choice is Yoshino Hiroyuki, who does good at the random friend). Shiraishi’s kind of husky voice I think would suit his inner afro.
Suguwa – An obvious choice is Yukino Satsuki, but I was thinking even maybe Hirano Aya would work here. Michiko Neya, would be nice too.
Kurosawa no imouto – kyonkundenwa?
Calamitous Intent 
I’d argue Junji Majima for Kurosawa (Ryuuji Takasu).
Hmm, I don’t recall Kurosawa no Imouto that of a loli too.
Ahh you should totally watch Itazura na Kiss!
Sakurai Takahiro (Kai Eiji) would be an interesting Nagaoka.