The Gun Devil (銃じゅうの悪あく魔ま, Jū no Akuma?) is a very powerful devil who embodies the fear of guns/firearms. Not much is known about the Gun Devil's personality as a whole. In its Devil form, it has not once displayed any form of communication in the entire storyline either due to the inability to do so or simply due to not having any interest in doing so, rendering it difficult to pinpoint any personality trait.