[He waits for the punchline -- so many short jokes start off with a note about his sword -- and just blinks at her when it doesn't come.]

It's meant to fight Hollows -- the monsters I told you about. [He did, didn't he? He's had to explain things to so many people lately...] Some of them can be pretty large. Seen a few with barbed tails. [Those are always fun.] Most of them have claws of some sort. They can be pretty destructive.