[Aidou is sure Zero is probably pleased his twin is around...may that will keep him occupied and Aidou won't have to worry about him suddenly deciding to try to kill Yuuki.]
Well, I don't particularly have a problem with you [besides the fact that he's related to Kiryuu, looks like him, and by being a born vampire hunter they naturally will have issues with each other], but is there a reason you responded at all?
I'm sure Zero would have informed you of all of those from our world who arrived here, few though there are.