Fairy Tail Zero.
Mavis, the future first master of Fairy Tail, lives with her best friend Zera on Sirius Island.
At six years old, Mavis is just a naive bookworm who desires to meet fairies one day.
In the year X686, treasure hunters attack the Sirius Island, forcing Mavis to take escape and went on a wonderful adventure!
She noted the joys and sorrows of each new adventure and heartbreak goodbyes into her mind, and finally discovers her real goal.