Hiei... huffs out a laugh as she asks if he has any other demon friends. It's not only funny because the demon form of 'friendship' was a little bit different than what humans considered it, usually more angled toward who can be a useful tool or political ally depending on what circles you associated in. All the political bullshit he never wanted to be involved in prior to allying with Mukuro and all the business to do with that.

"It isn't that simple." A pause, but then he shrugs. "I do, though."

And then, to deter her from asking about them in turn, or at least try, anyway -

"Only a few are here, though, and they are not the point."