The story follows a girl in the “Threshold“ (狭間, Hazama), a world between Heaven and Earth. “Impure souls“ — those that could not ascend to Heaven with the burden of their own weight — have dr...more

The story follows a girl in the “Threshold“ (狭間, Hazama), a world between Heaven and Earth. “Impure souls“ — those that could not ascend to Heaven with the burden of their own weight — have drifted to this world of constant warfare.