[Okay, so he's just gotten some attitude from what looks like a talking tin can -- okay no, Belphegor knows this is some manner of robot because Levi never shuts up about his haunted mecha anime and whatnot, but this is the first time he's seen one quite like this...?

Not that the guy dressed like this and galumphing around with horns and a tail can talk. Probably. Nevertheless, talk he will, and lace it with a glance of mixed confusion and disdain besides.]

Huh...? You think you're the only one who wants an explanation?? [just slowly shaking his head like he's talking to somebody particularly delayed on the uptake] Though, an explanation just doesn't cover this anymore, does it.