ベルゼバブ [Beelzebub]

In Beelzebub, a high school delinquent is saddled with raising the infant son of the Demon King—a job that comes with a shocking amount of diaper changes and world-ending power. Published by Shueisha from 2009 to 2015 across 28 volumes, creator Ryūhei Tamura blended slapstick comedy with supernatural brawling, turning a foul-mouthed baby into the heart of an absurd, action-packed series. Its enduring appeal lies in how it weaponizes the mundane chaos of childcare against epic demonic threats, making it a cult favorite for fans of rowdy shonen humor.