demon king, Dermilion. Actually, he was a good, he was friendly to human, until he was humiliated by other demon kings until one day he was burned alive. with holy fire just for helping a girl who was attacked by beast

The demon king Dermilion, comes back to life with revenge and wounds in his heart when he realizes that all humans do not appreciate his good intentions

Dermilion has a nickname, namely Voidson

he sits on his throne with a dark aura surrounding him

"Who.. are.. you.."