This was a particularly concealed cave at the bottom of a cliff valley. Outside the cave, harsh winds occasionally swept past, stripping the mountains bare. In such a place, let alone animals, not even a single blade of grass could grow. This cave was conveniently located at a bend in the valley. Even with meticulous searching, it was difficult to discover this location.

Inside the cave, darkness enveloped every corner. Yet, in the middle of the cave, there was a smooth ...