Ikken no Inka was the ancestral home of the Hiasobi Vassal family. The small castle was deep within the Tamori lands surrounded by mountains and the remains of a once proud forest. The fields and the castle grounds were pockmarked by smoldering pits of ash. The Hiasobi family's experiments had obliterated all life forms in the area nearby. Furniture was made of stone, and vats of sand were present in every room, in case fire breaks out.