Shinova: As PhoenixG mentioned, yeah, they are in a sense "management gods", as in Gods who manage things. I can sympathize with you, though, as I went "WTF? This can't be right" when I first saw that term.
And yeah, the two pantheons are right. I don't know of a way to romanize their names, though.
Spoiler:
The northern ones and the southern ones...oh man, the next time you go through Chapter 0 with the language set to Japanese, you're going to
love seeing what Jiruoru did to them.
PhoenixG: Here's a question...what would be more appropriate? Naru mana, or Null mana? Naru High Eternal, or Null High Eternal?
Man, I just love that scene!
Kaioshin: The CG style for Eien no Aseria is exactly just like that. Good luck putting up with it - though personally it didn't bother me that much in my first play through.
Oh, and gameplay mechanics of EnA are very very different from Seinarukana, so be warned!