User blog comment:Selim 009/Mermaid Heel Mysterious Player/@comment-4999650-20120425215748

They could always pull off a huge turn of events, where this person knew of Erza's past, so shes disguising herself as one of her long time old friends so she can spite Erza and beat her in a battle? Maybe within the battle, she will shape shift into Wally or Sho, and to tick her off even more, maybe Simon? some sort of Mirror Magic/ Transformation Magic/ Copy Magic could be in use? That's simply my theory if it isnt Millianna. First theory does sound strange but you never know... but otherwise, I so think it's Millianna.