'Not all demons are evil.'
There was this line in Raven Tale that was said by no other protagonist of the story.
Why he had said that was because he had met this one demon who valued honor more than humans could ever do.
Unlike normal fighter demons who could use magic and aura like magic swordsmen, he couldn't.
He was born unable to use mana. Even aura, which, in regular cases, was powered by mana, wasn't the same for him.
His willpower powered his aura.
As long as he had the will to fight, he could use aura.
He was an excellent fighter of a demon race that the Demon Sovereign killed because of their unique power.
That race was called Drakshan.
They could shape their bodies into weapons, and they were all fighting geniuses. Their exoskeleton was known to be so strong that no blade could cut it.
Yet, one of them was left to live under the condition that he serve the demon sovereign.
Soon, that demon reached the rank of a demon warlord, yet he didn't want any power.