Guilty is the epitome of a crafty, sadistic demon. She is one of few that is able to suppress her demonic aura and disguise it as an air of holiness, thus she was able to claim her role. A demon's pride is, typically, their ability to torment pure souls. Few demons manage to get as close to the purified holy elite as Guilty has managed. Her abilities have allowed her to fool even those at the top of the Holy "food chain," so to speak. Her ultimate goal is only to bring forth Heaven's demise.
Using her unique ability, with that goal in mind, she appears before holyfolk as a messenger from their Lord and God-- there is work to be done that only they can do. She easily beguiles them into committing atrocity after atrocity, gradually soiling and defiling their souls until she's able to snatch them up and convert their souls into demon underlings.
