Beelzebub: Hirotta Akachan wa Daimaou!?

At Ishiyama High, most delinquents either keep their distance from the feared brawler Tatsumi Oga or dream of being the one to bring him down. Oga, however, suddenly has a far stranger problem than schoolyard rivalries: he’s been stuck caring for Kaiser de Emperana “Beel” Beelzebub IV, an infant who also happens to be the Demon Lord’s son.

Beel’s attendant, Hildegard “Hilda,” explains that the baby has chosen Oga because of his overwhelming strength. With Hilda’s sword making the stakes clear, Oga is left with a grim choice—raise the Demon Lord’s heir, or somehow locate someone even stronger to make Beel let go. His best hope may lie with the Tohoshinki, Ishiyama High’s four toughest fighters, if he can persuade one of them to take over.