In a message dated 98-08-06 23:59:53 EDT, Jenny-chan wrote:

What's Marller and Urd's relationship anyway? 

I'm not totally sure either, as I can't read the untranslated 
stuff -- heaven knows I'd like to read volume 11, if only
to understand Peorth's motivations better.  She seems like
terrific fic material, if only we knew her...

I understand that they used to hang out before the 
 whole Belldandy/Keiichi thing.
      I can think of three possibilities.
      1) Marller is Urd's sister on her demon side.

Hmm... that could work.  Half-sisters... not a bad idea.

      2) Marller doesn't want to lose Urd as a drinking buddy.

Adequate explanation, if a bit fatuous.  Surely Mara has some
real demon buddies she can hang with when she's not in the
action at the temple.

      3) Belldandy and Keiichi aren't the only love birds in AMS...

Oh, Kami-sama... please, not that.  Urd seems to be the goddess
of love, yes, but her bent seems too hetero for this.

Sorry to add to the confusion, but there's another possibility:
         4) Urd and Mara are each other's brevet.  If one dies, so
             does the other.

Sorry I can't actually answer your question... 

Itsu mo,
Ucchan  ^_^