The guild continues to take on the members of Grimoire Heart as Erza goes head-to-head with Azuma. But when the dark wizard becomes one with the island flora, a secret magic is revealed and the island itself falls into peril.

The battle against Grimoire Heart continues as everyone's power suddenly returns! Gray vows to stop the dark guild using Iced Shell--sacrificing himself in the process--at the suggestion of Ultear, his former-teacher's daughter.