Roman explained the situation in Karian, which surprised Tang Shaoyang. Karian was different from the other worlds he knew so far, where only one faction ruled over. Karian had multiple factions, over twenty factions, in fact. Karian Adventurer Guild was one of the biggest factions, the top five factions in Karian.
The world was ruled by different factions, coexisting to help each other. Of course, while some factions worked together, there were some factions that were hostile to each other. It was the same as what was happening on Earth right now, where multiple factions ruled different regions. The difference was that Karian Adventurer Guild had multiple access to nine different worlds.