User blog comment:B214/Chapter 513: Hanamaru/@comment-4507125-20161205155546/@comment-99.65.100.71-20161206121231

I don't believe Irene is a dragon, that just doesn't make any sense to me.

But anyway maybe she was the whole reason the Dragon Civil War actually started. It might be possible that she encountered a Dragon and was able to change its mind on humans. That dragon may have been the king or most likely just a very powerful dragon that was able to rally up others to help support him with Irene by his side. She could have even been the one to lead the slayers during the war. Then after the war that dragon and Irene could have been named the new king and queen. And Acnologia could have been someone who hated dragons because they destroyed everything he cared about and humans because they wanted to live peacefully with the dragons. So he decided to get close to them and become a slayer so he could one day rid the world of all types of dragons. And he doesn't realize who Irene really is because he probably believes he killed her back then when he started killing the dragons he once fought alongside of or he never directly met her. And yeah you can sort of recognize people you've never directly met through other means, but not someone who should have been around hundreds of years ago.

And now I just realized how long all of that really is, also how little sense and flawed it must be. But I'll leave it the way it is, who knows it might help somebody else come up with something better.