Beelzebub: Hirotta Akachan wa Daimaou!? is a special anime that premiered in fall 2010, produced by Studio Signpost.

About the production: the story comes from a manga, there is 1 episode of about 30 minutes and its current status is "finished".

Its main genres are action, comedy and supernatural, with themes such as Shounen and Delinquents.

On AniList, Beelzebub: Hirotta Akachan wa Daimaou!? has an average score of 69%, a good score, and appears on 7,418 users' lists.

The story follows the "strongest juvenile delinquent", Oga Tatsumi, a first year in "Ishiyama High" the school for delinquents. 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 demon maid Hilda. The story follows his life with the child and at the delinquent school. (Source: Wikipedia)

Official synopsis from AniList.