The world of Fairy Tail is on the bring of changing, a mysterious person and a Guild from nowhere just arrive. What will be the destiny of the world?

With the war againts Alvarez finally over and with the defeat of the Dragon of the Apocalypse, peace finally returns to the land. However, when word about his exploits gets to travel across the world, Natsu Dragneel sees himself forced to dealt with the problems that this newfound fame brings, including the attention of a centain undead Overlord. I don't own Fairy Tail or Overlord.

As the last hours of Yggdrasil have come, the remaining players and members (excluding one) of the Great guild Ainz Ooal Gown have stayed to pay respects to the game that brought them all together, as the game ends endless darkness could be seen before light appears and our heroes are thrust into a new world, What will happen? Who knows? (Takes place before Grand magic games arc.)