Beelzebub

Ishiyama High is an all-male school filled with delinquents where lawlessness reigns supreme; one universal rule to remember at Ishiyama High is not crossing first year student Tatsumi Oga - Ishiyama's most vicious fighter!

One day, Oga happens upon an unusual figure floating along a riverbed and gathers him up, only for it to split down the middle and reveal an infant crawling onto Oga's back--who soon develops an attachment! Little did Oga know at that moment; Baby Beel would later grow into Kaiser de Emperana Beelzebub IV or Baby Beel for short (son of Demon Lord!)!

Oga faces further complications as she attempts to raise Baby Beel alongside Hildegard, Beel's demon maid. These two may face more difficulty than they anticipate from juvenile delinquents and demonic forces when trying to care for Baby Beel.