The Ultimate Magic World (大魔法世界 Dai Mahō Sekai) is a state in the world of Earth Land where only Mages would be able to survive. In this world, those without Magic would live terrible lives. If Zeref is awakened, the Ultimate Magic World is possible. Since 90% of the humans on Earth Land are not Mages, the human population would decrease drastically. Or even if they did live, it would be "Hell on Earth", as described by Rustyrose. To create the Ultimate Magic World is the main goal of the Grimoire Heart Guild, wherein they would make Zeref the leader.