"..."
The elderly man began to explain in detail, causing Wei Wuyin's heart to grow a little cold. The Seekers that scour the treasures of the four extreme lands on the Four Extremes Continent were almost all from the Central Region—The Holy Land of Elements.
Outside of these human forces in the central region, there were cities and forces that lived above or within the dangerous lands housed by humans and prevented the elven race from laying an independent claim to them. Those Seekers often visit these cities to restock their supplies or rest, so they are often filled with experts.
It was these forces that traded with the elves for captured Seekers, and while everyone was aware of this, there wasn't much that could be done. The cities were a necessity for Seekers, and humans thrived in them. The environment was horrible for cultivation and development, so using Energy Converters and Alchemic Proxies was an absolute need to promote their strength.