Adam

Older brother of Lord Bune and first born of their family. He was touted as a gifted individual by parents who pushed him to overachieve and be worthy of their family name. This stress led to a life of misery where his relationship with his brother soured and became resentful towards his parents. He didn't amount to much outside of being a magic school dropout who works as an underling for demons of higher status.
Though, to everybody's shock, he recently was appointed as Beelzebub's retainer but has yet to make an appearance actually attending the king of Hell. Many speculate, but none have found a concrete answer.