One year after the demise of
Zeref and
Acnologia,
Natsu Dragneel and his team from the Fairy Tail
wizard guild disembark to the continent of Guiltina for the 100 Years Quest, a mission that has been unaccomplished for over a century. Their client, the immortal Dragon Slayer
Elefseria, reveals that the quest's purpose is to seal renegade dragons called the
Five Dragon Gods—
Selene,
Ignia,
Mercphobia,
Aldoron, and
Viernes—who threaten to cause worldwide destruction. Natsu subdues Mercphobia with aid from Ignia,
Igneel's malicious biological son, who challenges Natsu to strengthen himself for a one-on-one battle. Meanwhile, Fairy Tail recruits a new member,
Touka, unaware that she is the host of another wizard named
Faris. Claiming to be the White Wizard, the leader of a malevolent
white magic cult, Faris takes control of Fairy Tail in a crusade to erase sources of powerful magic.
Wendy Marvell separates Faris from Touka after Selene deceives Faris into awakening the slumbering Aldoron, who is killed by Natsu. Despite Faris's actions, the team saves her and Touka's home, the
parallel world of Elentear, after learning that Selene has been blackmailing Faris with Elentear's destruction. Selene seizes control of
Diabolos—a Dragon Slayer guild that feuds with Fairy Tail over the 100 Years Quest—to retrieve knowledge of
Athena, a weapon built by Elefseria's pupil for use against the Five Dragon Gods. However, Fairy Tail and Diabolos are forced to unite against Ignia's ally
Dogramag, a sixth Dragon God believed to have been slain by Elefseria, who ends hostilities with Selene after Natsu kills Dogramag. Further investigation reveals Athena to be the true, mechanical White Wizard utilized by Gold Owl, an
alchemist guild formed from Viernes's disembodied will. Persuaded by
Lucy Heartfilia to rebel, Athena helps Natsu kill Viernes. As the last remaining Dragon God, Ignia reveals his plan to destroy humanity by recreating the Dragon King Festival, a historic event in which Acnologia exterminated much of the dragon race. To this end, he uses Dogramag's power of resurrection to revive the slain Dragon Gods, and casts a spell that drives all four dragons berserk and transforms Guiltina's population into dragons. The battle is joined by Faris' native Earthland counterpart, a black wizard imbued with Acnologia's power. == Production ==