Join Noah and Mio, members of the two opposing nations of Keves and Agnus, on a heartfelt journey through a warring world with a dark secret. Traverse massive, fantastical landscapes and master seamless real-time RPG combat as you expose the true enemy pulling the strings. Pair up and fight as oneBy joining together in battle via Interlinking, specific pairs of characters in your party can fuse to become a fiercely powerful creature known as an Ouroboros.Change who's in charge to modify the form and Arts of the Ouroboros to fit your approach. Explore a rich and massive worldForge your own path across stunning sci-fi landscapes brimming with discoveries. Scour the world to find new locations, items, treasures, and unique monsters. Along your journey, you may even notice a few familiar sights... AioniosHost to vast and varied landscapes like grassy plains, lakes, forests, snowscapes, oceans, and waterfalls—all filled with surreal landmarks and diverse wildlife. Its natural splendor stands in contrast to the grisly conflict waged here. ColoniesSettlements spread throughout the land serve as the base of operations for the nations of Keves and Agnus. There, you can cook, craft gems to strengthen your abilities, and take up quests to help the residents with everyday tasks. FerronisThese mobile bases rest at the heart of each colony. If the need arises, they are also capable of becoming devastating weapons of war. Masked QueensShadowy rulers lead Keves and Agnus—but to what end? For the people of Aionios, receiving a Homecoming ceremony in front of their Queen is the highest honor.