The Outerlands of Diyu

Mostly known for its rather massive size and position south of Jianghu, Diyu is a relatively uncolonized chunk of volcanic and unforgiving land. With very few inland water-sources and even fewer forests, the entire continent is a desolate dreadscape with volcanoes and tall, cloud-piercing mountains galore.

Because of this, even Demons do not find all that much success living in Diyu. It is very uncommon for any life at all to find a home here, and therefore, there is almost nothing to prey upon. Even humans have not yet managed to make the trek deep past the coast, with Xuantong, a Jianghuren town, being the only known settlement.

Landscape
Extreme drops and rises in height are exceedingly common throughout the Outerlands, and while there are wide valleys in the northern center of the continent, these are populated by carnivorous flora and deemed just about as dangerous as any mountain or deep pit. The coastline dodges between jagged, ship-ruining rocks and a flat, moisture-sapping desert, and either serves just about as well as the other to ensure the deaths of any possible 'invaders' within a few days of arrival.

While much of the land is visibly quite natural, there's a clear pattern of some sort of human influence with thousands of craters dotting the southern portions of the continent. Many mountains have been sheerly sliced in twine, and what used to be a plentiful string of mighty volcanoes throughout the direct midpoint of Diyu has been converted into a flattened, bubbling heap of molten magma that oozes out of Eternia's crust lazily.

History
While Diyu has spent the large majority of its time devoid of much sentient life at all, there is rumor (and occasionally confirmed evidence) of several periods where humans managed to colonize the depths of the continent. Even so, these endeavors are not usually long-winded, and most often are they undone by the mental attrition applied by the continent itself; with very little food and water to its name, and with a bleak horizon that shows only lifeless rock and imposing magma, Diyu warps the sanity of those who dare to settle it.

The land has a penchant for vile practice as well. Bearing an innate eeriness, it's only natural that Diyu would be home to a record several hundred thousand summoned spirits as a result of the War of a Million's Shaytan catastrophe.