In the hierarchical societies of the Human Kingdom, sub-humans who conformed to human aesthetics became servant races. Those who did not conform became combat races, or war slave races.
Their role was to fight on the front lines in battles, protecting humans.
However, they had no other choice, even if they were unwilling, because the humans were backed by Gods. Their own Gods and Ancestor Spirits had vanished, leaving them unable to protect themselves any longer.
Those who did not conform to human aesthetics and were powerless in combat were even more miserable.
They were considered lower than slave races, forced to do all sorts of dirty and tiring work.
If a combat race was in a bad mood, they could beat and scold them at will, as long as they didn't kill them. Any deaths from severe injuries were considered their own fault.
Not only these races, but even humans themselves were divided into a strict hierarchy.
