User blog comment:LegerPrime/The Final Villian/@comment-25395791-20151013080952/@comment-95.51.118.58-20151013135629

Zeref: Natsu, you are my brother. Fairy Tail guild: You're lying, you despicable bastard!!!!!! Natsu: Well, it's... etto... kinda true. ^^"

Now that would be a nice plot twist - Natsu explaining that he had left Fairy Tail in order to learn how to control his E.N.D. powers. It would also explain why he suspected that Gray was being taken over by his Demon Slayer powers - because he had to struggle with it himself. >:D

Not going to happen, yeah. But it would be fun to watch ;)