Quote:
Originally Posted by oneiros
I'd guess offhand it's a reference to Oni, which IIRC come in either red skin or blue skin. I could be entirely wrong, however.
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Yeah oni would be my first guess. Sort of red skin for demon in western references.
Other than that I'd just say aesthetics. Popularity too, consider Astaroth (from Shinrabasho) seemed to kick off the blue succubi in those recolor edits.