[Ah, so that's what it was. It's Judal's disappointment rather than his joy that Kariya understands, though he can't entirely sympathize. Familiarity is simply a double-edged blade for him.]

Where I come from, magi is simply the term for all users of magic. Great or small. [He shakes his head.] I'm sorry, but you must come from far away.

[Or another world altogether. That explains, though, at least in part, the unsettling magic energy around the boy. As one of the most powerful mages of his world (apparently)... he'd mistaken Kariya for something of the same.

Now that was a worthy trick.]