User blog comment:Omega natsu2/Fairy Tail Zero: Dances with Blades, Review./@comment-24039250-20141023043642/@comment-24039250-20141024010203

I just came up with a theory regard Zeria: Ok hope this works. Zeria is an illusion made by Mavis, which is why the others can see her. Zeria is only there to serve Mavis as a catalyst towards her being alone, however once Mavis feels like she is no longer alone Zeria will disappear and we will be left with a crying Mavis having to let go of her first friend in order to accept her new ones.