These beguiling embodiments of the seven deadly sins—Lucifer, Mammon, Leviathan, Satan, Asmodeus, Beelzebub, and Belphegor—never cease to stir up trouble. Though feared throughout the Devildom, they find themselves enchanted by a single human transfer at the Royal Academy of Diavolo. Whenever the brothers long for that presence, they unleash absurd capers to amuse themselves and even involve others in their boundless mischief in endless adventures that keep them laughing.