Orcs are a demi-human species that live in the unexplored region of the Abelion Hills. They live in a tribal manner and are on constant warfare with the other demi-human tribes in the area. The fighting was so bad to the point that the Holy Kingdom had to build the Great Wall in response to their conflicts. The Holy Kingdom built the wall with the sole purpose as to keep the fighting between demi-human tribes away from affecting their nation in any harm's ways possible. One could even speculate that the Holy Kingdom didn't want to be caught in the crossfire with them was the reason for why they built the wall in the first place.
Orcs are demi-humans around the height of a man, with porcine features.
It is said that Orcs are a species that loved cleanliness.
Orcs have great physical strength, greater than what a normal human could possess.