Rambling about Fairies - Manga Chapter 196
Natsu uses the title 'Demon King/Maou', because it's a very staple fantasy trope that the big bad mastermind at the endgame is called a 'demon king'. (to contrast the holy knight/divine hero that the protagonist is) But in that case, the 'Demon King' (endgame villain) of Earthland would be Zeref!
And that's very ironic! The ultimate evil of both Earthland and Edolas are a Demon King Dragneel!
(Which leads me to wonder if the Zeref of Edolas is dead like Natsu would've been on earthland. It's possible, and unless Mashima retcons a new character into the Edolas world, we're never getting confirmation of what an EdoZeref would be like.)
Anyways, it's a fascinating parallel that in Edolas, they only know him as "Dragneel". While on Earthland, we've lived centuries only knowing him as "Zeref". They'll go down in stories of the next generation like that, and I find the contrast just so perfect.
