User blog comment:IamJakuhoRaikoben/Chapter 373: Life or Death?, Review./@comment-5840892-20140228175138

Well the number of twits that have started screaming "Natus is E.N.D." or "E.N.D. = Evil Natsu Dragneel" officially makes me want to kill myself. That is the most unimaginative and cliche thing that one can come up with. I mean I have a better theory about E.N.D. and it may have a few holes in it, BUT STILL it's more interesting and less cliche. My Theory is rather simple:

Either Mira herself or the Take-Over Sibbilings as a whole are E.N.D.

Considering that the Demons look like a mixture of beasts, animals and what one could call "classic" demons, it could potentially make a bit of sense if you look at it the right way. Each of them can take over one these things (demons, beasts, animals) so that could be a small hint right there, Also the fact that Mira said she was already in possession of the Demon Factor before Tartarus tried to make her into a Demon and they simply revived it, there is something signigificant there. Plus there's still the though that the Take-Over Sibblings backstory is important in this arc. Just food for the thought.


 * Note I had to use Mangastream's rather "Iffy" translation when double checking some facts, so....maybe a few translation/phrasing errors. But my point should still across.

And the thing about Igneel being unable to kill E.N.D., could be something as simple and rather stupid as: "I won't harm women". Or something like that.