Mavis faces Zeref alone inside Fairy Tail's guildhall. As she reveals her conflicting feelings and the key to her plan, Zeref makes a sudden realization. Meanwhile, Lucy's team watches as Zeref's Book of E.N.D. starts to fade away.

Inside the time rift, and with the fate of the world on the line, the seven Dragon Slayers battle Acnologia. Outside the rift, Acnologia's physical form continues to wreak havoc. The situation seems hopeless, until Lucy comes up wituh a last-ditch plan.