Yangu Coast

Long ago, the Yangu Coast was filled with monsters. Not very many people wanted to settle here. The Jadeite Empire would need to send a big force to take it but thought it wasn't worth the effort. Thus an intelligent Hobgoblin got his hands on Dragonglass and was able to use it to conquer the lands and push back the Yaoguai Lands. This means that for the most of the milleniums, these lands were uncivilized until very recently.