Naruto: brother of Beelzebub

Naruto was born to Kushina unzmaki and the great demon lord Beelzebub, because the battle between Kushina and one of the other wives of Lord Beel she had to move her son in the human world to keep him safe from one of her sister wife's because they tried to kill her son and lord Beel was pissed off because they did that, so he only has Kushina as a wife but he couldn't find her in the demon world so he ordered a few combat maidens to find his wife and son who happened to be his first born child.