Beelzebub [TV]

Serialized in Weekly Shounen Jump in February 2009. The Beelzebub manga is about this invincible delinquent who found this mysterious baby by accident and the baby became attached to him. It turns out the baby is actually the next Demon King in line and now Oga Tatsumi (the major character) is chosen as his parent. Burdened with the responsibility to raise the kid whilst avoiding the kid to grow up to a demon that ends all mankind, what kind of trouble awaits the legendary Oga?