Tartaros Chapter - Alegria Fairy Tail : Season 6 Episode 21

Just when Mirajane is about to succumb to Seilah's Macro, she remembers a series of events in her childhood that could provide a clue to turning the tables on the Etherious demon. Then Mard Geer makes his move to neutralize all the Fairy Tail wizards and even scores of Tartaros soldiers on the Cube.