Nidalese:

The Nidalese people are a human ethnicity descended from people who escaped Earthfall by pledging themselves to Zon-Kuthon. They are most populous in, and most closely associated with, the nation of Nidal, and are among the most common speakers of the Netherworld language Shadowtongue on Golarion. Nidalese live beneath the shadow of a pact made in the dark days of ancient history. They are still fulfilling their part of that pact to this day, and from earliest childhood they are taught to regard pain as sacred and suffering as joy. Their most sacred duty is to continually refine and intensify these sensations into sacraments. Farmers, fisherfolk, and artisans follow Zon-Kuthon's teachings while raising their small, tightly-knit families under his influence. Despite their possible desire for a different way of life, they have long been under the Midnight Lord's rule and can envision no other existence. In this land, hope is perilous, and a somber but stable peace seems to be the safer choice. Most Nidalese people have skin of ashy gray tones and black, gray, or white hair.