His parents were already dead.
Three years after Mercelina visits Naoya? I'm sure he never mentioned it
in anime Mercelída's husband was similar to Naoya in character(he was kind, nice), but don't know if this is shown anywhere in manga.
i think Asuha was left to Naoya, because there was chance she could be a pure human and as heir succubus is needed.
i think Asuha didn't develop into succubus, because there was no magic in human world.
i didn't see raw's only anime + translated part of manga.
That makes sense as to why Asuha awakens her Succubus traits later on but doesn't make sense as to why she was left with Naoya. Mercelina was afraid of what would happen if word got out that she had a daughter that wasn't born from another demon-ish guy (idk, it's politics). I still think that the fact that Naoya was always lonely played a part of it though
Edited by MrAnarchist, 11 May 2014 - 06:33 PM.
So Ulamog and Kozilek are dead, FOR GOOD. but Ugin made a good point: there's no telling how many eldrazi there are in the Blind Eternities and whether they will seek revenge.
It REALLY sucks when a pacifist makes you guilty for killing monsters.