The year is 2032, and the world is ending. German scientist Friedrich Auflich invented the Cross-Dimensional Warper. A device that can let people hope between realms. However, disaster struck and the machine malfunctioned. The land started to warp around the facility. In the end, all land connected to Germany had become inhospitable and was infested with creatures from other dimensions named Oni. A few years later a new substance was found called Aether. Those injected with Aether became superhuman and were able to manifest Aegis. Manifestations of the soul. Follow Yuya Tsumi and his Engager as they set out to reclaim humanity's lost land.