Amidst the glimmer of neon lights, technological advancement causes humans to be consumed by commercial convenience. In the shadows, a war between the Yatagarasu & the Phantom Society is brewing, Devil Summoners who harness the otherworldly powers of â Demonsâ. Existing in the secret sea of humanityâs data, a digital hivemind has evolved into sentience: Aion. Observing humankind from afar, Aion calculates that a world-ending disaster is imminent & creates two agents to combat against