Board Thread:Speculation House/@comment-4403232-20140411230237/@comment-24198837-20140626234710

Very true.

It's safe to assume childhood friends (As it just seems that way from their interactions and how they act around one another). But yeah, other than that, we've got nothing. As far as we know, there's nothing special about their backstories apart from the fact that they're, seemingly, interconnected.