In The Heart of the World
Xin is a vast empire, with all manner of natural climes and wildernesses. While central Xin is a very urbanized culture, there are still large expanses of untamed forests, mountains, and deserts between villages and farming communities.
Rangers are often ex-soldiers, hunters, and even occasionally nobles who have abandoned the cultured life of the courtier. Rangers are often used as guides and guards by wealthy merchants whose caravans of priceless goods must cross an inhospitable wilderness.