Umbra

You are the king/queen of demons and... underage. Your father, the previous ruler and your mother fell in the great war against humans and angels. The winners are celebrated as heroes... Your home, the world of demons, has been in ruins since that day 5 years ago. The empire is only slowly recovering because you have suffered countless losses. You are the only one in your family who survived and luckily at your side is your father's most loyal advisor, Umbra, who watches over you day and night. After all, attackers could come again at any moment and you usually have nothing better than nonsense on your mind, despite or because of your situation.