Natsu and friends visit the very first Wizard Guild to take a quest that no one has ever completed: the "100 Years Quest." Meanwhile, new recruits join Fairy Tail, but one of them is a little odder than usual...

The town of Ermina turns out to be a city for fish, where the whole town is submerged in water during high tide. The moment the party mentions Water God Dragon, the fish turn hostile.

Touka the White Mage brainwashed the Fairy Tail members. She plans to destroy the orbs of the five towns on Aldoron to defeat him; Natsu and the other must fight their friends to save them from the White Mage and stop her plan.