There are many writers who have addressed this theme of how a demon would act. The most paradigmatic case is C.S. Lewis with "Screwtape's Letter." Juan Manuel de Prada himself wrote his own version, with Wormwood responding to Screwtape, moving the setting to Spain during the coronavirus. There's a movie I love. There's a cartoon series that I love, especially the Doraemon movies. One of them, Doraemon: Nobita's Great Adventure Into the Underworld: The Seven Magic Users, describes what a planet of demons would be like. The same thing happens in another movie, Doraemon the Movie: The Record of Nobita's Parallel Visit to the West, inspired by Journey to the West. This film tells what would happen if demons had taken over the world and what a demonic society would be like
This question was provided by Corinna Turner.