User blog comment:Omega natsu2/Fairy Tail Zero: Night of Embarking, Review./@comment-24800928-20140913194001

Rather then Zeria being a figment of her imagination, I would prefer that Zeira is using the same magic Mavis is using now, that ethereal body thing. That would explain why only Mavis could see her but it would be rude for Zeira not to show herself, even after Mavis introduced her. Maybe Mavis is casting the spell on Zeira after sensing her soul at some point or something, and Mavis doesnt know how to make others see her, assuming they do already. Zeira is probably going to be imaginary though...