Avenging Demon

His eon's long method of recruiting a constant flow of sinners for hell's fire pits finally backfires on the devil when one of his male demons turns out to possess dominant genes that were passed on to him from King Solomon the Wise, who had been the the most just human being who had ever existed.
This demon, who grows up on earth in the guise of a man, discovers that he is both a demon and a powerful human, and that the task given him by the devil will be to both kill and pervert other humans. When he refuses to accept the assignment, his human family that he loves very much is killed, he declares war on all of hell's denizens and vows to destroy them all.