Lucifer, Mammon, Leviathan, Satan, Asmodeus, Beelzebub, and Belphegor rank among the most formidable demons in the Devildom, holding officer positions on the student council at the Royal Academy of Diavolo (RAD). Yet, as embodiments of the seven deadly sins, their conduct frequently leans toward excess. Their daily mischief masks their lofty rank and intimidating standing among peers of their kind. Behind the curtain, this clan proves far more endearing—and comical—than initially presumed in the shadowy halls of academic intrigue.