Wailing Demon Territory

The Wailing Demon Territory (魔哭領) is another name for the Balca Peninsula, the area where the Kyouma and the Majin are located. The land here is poisoned by the Majin, killing any human who touches it, and giving the ground a reddish color. Braves are immune to the poison since they are protected by the Goddess of Fate's blessing.

History
Fremy reveals that there are humans who don't have the crest living in the land. They are being used as slaves by Tgurneu and have special parasites in their bodies protecting them from the poison.