...still, an American accent (or the lack of one) doesn't always mean you're American or not.

I'm working on the timing of explaining exactly where I come from. ("You know where the soccer and baseball fields are? First place I lived.")

And I think this is your plot bunny, Icka:
<Hakuba> Somebody stole my accent!
(No, no idea, aside from Kaito having something to do with it.)