The next entry of the Etrian Odyssey Untold series is essentially two games in one. The first is a Nintendo 3DS update to Etrian Odyssey 2: Heroes of Lagaard, originally released on Nintendo DS, featuring new dungeon layouts, enhanced graphics, and system improvements from the recent Etrian Odyssey Untold. The second part is the Untold portion, which introduces a brand new story mode with a fixed party, voiced dialogue, and animated cutscenes that follow the bittersweet tale of the Fafnir Knight and Princess Arianna. Similar to Persona Q, the Untold portion of the game emphasizes character interactions as the story unfolds, with the Fafnir Knight and Princess Arianna embarking on adventures into the ruins of Ginnungagap and the Yggdrasil Labyrinth alongside the hero Flavio and the two mysterious adventurers, Bertrand and Chloe.