The Binary Realms

Before the Divine Merge of the two realms, Terra was inhabited only by humans, nomads scattered throughout the continents that survived in harsh conditions. The realm of Ero collided with Terra, the two realms becoming linked for eternity. The two realms can be traversed using a portal. The people of Terra can travel to Ero through the portal located in the land of Elves and Fae, while Enchanters can travel to Terra through the portal located in the Archway Plains.