User blog comment:Ncduru/The Erza-Irene Connection/@comment-42.60.253.109-20160427155935/@comment-7418318-20160429113544

I haven't done much reading the last few days, so sorry if this was already brought up:

Maybe the monsterous six are a group of elite subordinates (similar in rank to Marin or Ajeel's lieutenants) of either Bradman or Eileen and they might have been a part of the reason how the north armies got wrecked.