In the realm of Pandemonium, Beelzebub, once an angelic figure turned prince of Hell, reigns over former heavenly beings. Known for a chilling reputation, Beelzebub surprises all as a female devil with a peculiar obsession for all things fluffy. When the new assistant, Myurin, joins her service, he uncovers a different side to this formidable ruler. While she efficiently manages Pandemonium, her reliance on Myurin for everyday tasks outside work reveals a charming vulnerability. Amidst the facade of professionalism, Myurin finds himself captivated by Beelzebub's endearing quirks, reshaping his perspectives on appearances and the true nature of the powerful devils governing Pandemonium.