Beelzebub (べるぜバブ Beruzebabu) is a Japanese manga written and illustrated by Ryūhei Tamura. The story follows the "strongest juvenile delinquent," Oga Tatsumi, who is a first year in "Ishiyama High," a school for delinquents. The story starts as he is telling the story of how he found the baby to his best friend Furuichi Takayuki.