Exorcists

Exterminators are Angels that are sent from Heaven to kill a portion of Hell's population whenever Hell becomes overpopulated in a yearly genocide.

Trivia

 * According to Vivziepop on YouTuber Artisim Podcast's Episode 59, only the Exterminators can really and truly kill the citizens of Hell using their special tools.
 * Sometimes when a killing is done and if tools are left behind, other demons will steal them and sell them on a black market so demons can kill others.
 * When asked why there is a reason that the Exterminators and presumably other Angels are robotic, Vivziepop said that she can't say much, but she did confirm that they're not exactly robots. However, they do wear LED screen masks on their faces.