Not necessarily.
HUGE YU SPOILERS:
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First, the Ragnarok ending is but one of three. Second, while Nashia LOOKS like a Magi, Nashia is apparenly an Angel. Cast out. And, I assume that Marietta is not the Archangel we know and love from Riviera, and is likely the protector of Heaven's Gate, considering that's the last area you go to, and she's the last boss.
Of course, if Yggdra IS a prequel, then it seems that Yggdra and her companions were the "demons" that the Gods and Grim Angels fought.
Писатель всегда будет в оппозиции к политике, пока сама политика будет в оппозиции к культуре.