As the final days approach and Ragnarok threatens to consume the Norse cosmos, Odin dispatches Maria, a newly formed valkyrie, to the mortal realm with a desperate mission: to seek out corrupted souls and restore them to purity, gathering divine power to stave off apocalypse. Armed with the ability to resurrect fallen warriors as her Einherjar companions, Maria descends into a crumbling world where each battle and purification ritual draws her deeper into her sacred purpose. However, her unwavering faith begins to fracture when she encounters both a mysterious human and a renegade valkyrie who question whether Odin's true intentions align with salvation or something far more sinister. Caught between her divine obligation and mounting suspicion, Maria must confront whether the All-Father's cause deserves her absolute loyalty.