The cast of the series

Background Information

Beelzebub is a completed shonen manga series with 27 volumes created by Ryuuhei Tamura.
The story follows the "strongest juvenile delinquent", Oga Tatsumi, he is a first-year in "Ishiyama High" the school for delinquents. But one day while sleeping next to a river, he sees a man floating down it. He pulls him to shore and the man splits in half revealing a baby boy. This boy is the son of the demon king and he has been chosen as the one to raise it with the baby's maid Hilda. The story follows his life with the child and at the delinquent school.
The story starts as he is telling the story of how he found the baby to his best (and only?) friend Furuichi Takayuki.

Standing in the Battledome

The series is overall stronger than the likes of Soul Eater due to its top tiers, which possess at least city level DC with massively hypersonic speeds. The rest of the verse ranges from wall level and faster than the eye can see to city block+ level and massively hypersonic.

Still far below the likes of the Holy Shonen Trinity.