Beelzebub
The students at Ishiyama High School are all criminals, and the environment is one of constant violence and anarchy. The one guideline that can be relied upon by everybody is to stay clear of first-year student Tatsumi Oga, Ishiyama's most fearsome fighter. When Oga is walking down a riverbank one day, he comes across a man who is slithering downstream. An infant emerges, crawls over to Oga, and immediately creates an emotional bond with him after being rescued by Oga. In spite of the fact that he doesn't know it yet, this baby's name is Kaiser de Emperana Beelzebub IV—the son of the Demon Lord! It's not enough to find the future Lord of the Underworld; Oga is also faced by Hildegard, Beel's demon servant. Baby Beel's mother and father work together to nurture the child despite the presence of juvenile delinquents and demonic powers.