Alienmorality Stories

What if in the Underworld, there is another kind of denizen? One that predates when the Devils make their way home as the inhabitants of the Underworld. The Obyrith... The original inhabitants of the Underworld, more specifically the abyss... A race that predates even intelligent life on planet Earth and are eldritch beings who makes even the devils looked harmless by comparison... Maddening to see... Alien in their morality... Dangerous to the core... So why.... Why is one of them, an Obyrith Lord, is at Kuoh Academy?