Silk demons:
Silk demons look just like humans, the only way to distinguish them is by the color of their eyes: bright red.
They are extremely shy demons that live in forests, they will not attack unless provoked, this type of demon is hard to find due to the high child mortality: of 10 children 8 will surely die before the year.
Why are they called silk demons? Well this is because of the propieties of their saliva: wjen spited it turns into a whit silk-like sustance, that is later dyed using herbs
This "silk" is used by them to craft their beautiful clothes they wear.