A helluva boss fanfic. The Cleansing is an event in hell were Angel's invade to kill its inhabitants. The demons are powerless to stop them. One day Moxxie out doing something for Blitzø and an early Cleansing happens. Hes backed into a corner and makes one final call to his love before his head gets chopped of...except hes saved by someone, an exterminator, someone who kills the Angel's on the days they invade.

Read here:
https://www.furaffinity.net/gallery/syrusace/folder/942256/Helluva-exterminator/