[Oh, that was sure a flashy way to use a fire spell or whatever it was people from Kakashi's world did.]

That's one way to get rid of them.

[He grins. A pretty fast way. Maybe not the safest but Kakashi didn't seem like the type to let it spread.
He considers quipping that it was too bad they didn't have marshmallows to roast but figures that's too childish of an activity and might offend the small ninja.]

So this is where you live in real life? [Or whatever this was.] Or just a temporary base?