On an island in the middle of the sea stands a massive maze known as the "Yggdrasil Labyrinth", which has been attracting adventurers from all over the world for years. No one knows how deep it goes, or if there's anything at its end. Some say there's a treasure of immeasurable value hidden within, while others claim the remnants of a lost civilization lie there. In the game you'll play as Nyx, a young adventurer who joins the guild of Talrega with the goal of unraveling the Labyrinth's mysteries. But something goes terribly wrong…