User blog comment:Omega natsu2/Episode 181: Fairy Tail vs. Executioners, Review./@comment-24734283-20140510050024/@comment-112.198.79.227-20140510063706

Maybe Mavis is actually a Fairy. Remember King, Elaine and Helbram from Nanatsu no Taizai? Those three Fairies never actually age at all looking like kids even for 700 years. It's possible that Mavis is one of them after all.

I think Mavis might be Fairy King Harlequin (King)'s former tactician during the war between the Demon Clan and all four races (Human, Giant, Fairy and Holy Maiden Clans). After the war, she took interest in humans leaving her homeland The Fairy King's Forest, made friends with Precht, Walrod, and an unnamed Mage and founded the Fairy Tail guild!

Lol *Just saying* Peace don't kill me!