In Battle for Dream Island: The Lost Realm, the contestants are thrust into a mysterious new dimension by a shadowy figure named Nexus. Promising challenges unlike any before, Nexus reveals the Lost Realm—a world where fears, strengths, and secrets are tested. In Chapter 1, the peaceful world of Goiky is shattered by a vortex that pulls the contestants into this strange realm, setting the stage for an adventure where alliances and choices will shape their fates.