That's a hard one! Erm, Buenos Aires? or is it some Scandinavian country? An Austria city? Grenoble, Toulouse in France? I bet this one is in France!
I can assure you, it is not Romania Get the feeling that Hiake likes Germany and Copenhagen. You mentioned them quite a lot But nope, none of them above Hmmm ... let see ... that will be. No, no,no, no, no and absolutely not Clear enough
^Brussels? Belgian chocolate is the only thing I can conjure up from that hint... And yes, I do have a soft spot for Germany, no idea why (I haven't even been there). But Copenhagen sounds nice
Seattle? Just because that's one of the few coastal cities I know in North America (there's no way in hell I would know any in Europe)