User blog comment:FairyRaven/Fairy Tail Chapter 435 & 436: The Cry of Victory & Memoirs, Review and Commentary/@comment-24784846-20150518115847

Guys, I'm not sure I truly get all this because if Natsu (Zeref's Brother) is dead then how can we say that our protagonist Natsu (E.N.D.) be related? Is that Natsu (Zeref's Brother)'s corpse? Even so can we say that they are the same person? I don't know if E.N.D.(our protagonist) is related to Zeref as his deceased brother.

But maybe I'm just confused.