Beelzebub is a Japanese manga and anime series about Tatsumi Oga, a high school delinquent who finds himself stuck raising a demon baby named Beelzebub, the son of the Demon Lord. The plot follows Oga as he juggles his violent school life, fights with other delinquents, and the chaotic responsibility of caring for a powerful infant who zaps anyone who disobeys him. Readers enjoy it for its absurd humor, over-the-top action, and the comedic contrast between tough gangsters and baby-rearing duties.