The Great Migration of the World

Astral World's Calendar, year 28, which was year 10053 on the wizards' calendar, the Fourth World was officially named the Arcane World.

The Maria's World supporting the Divine Kingdoms, the Abyss World inhabited by the devils, the Starsoul World of the wizards and the Arcane World; the four worlds presented the most powerful and stabilized era. The Divine Kingdoms and the Abyss World were the most powerful, but when the Wizard Alliance and the Arcane Kingdom formed an alliance, they created a delicate balance between each power.

Starsoul World, Fairy Continent, Sylve Continent, Troll Continent and other continents, one could see a huge portal emerged from various cities. The vortex of the portal was swirling and the door to another world was opened from day to night.