Hueco Mundo

The land of Hollows, this vast and seemingly endless desert realm cloaked by an eternal night is host to majority of Menos class hollows who have retreated to this realm, often due to human souls alone being insufficient to satiate their hunger. Though the realm completely lacks the typical base necessities for life such as water, sunlight, or plants, differing terrains and odd structural phenomena are present, from crystal trees and unforgiving cliffs, to deserted ruins. Strength, broadly, is often the determiner of power and control here, though every group of hollow has their own ways.