Well much like what we usually think when it comes to mythical creatures/beings. Like a grim reaper we think of a black hooded skeleton with a scythe. Or goblins are short evil green creatures or something.
Depending on many other myths, there are many that is similar to other coutries myth and they would call it something else. Anf some of these similar creatues would have difference in themselves.
Most common mythical creatues are animal like, and human like. There are even ones where they can turn into both. Even deamons we think as evil. But there are some countries where they call them that but is devided into good demons or bad demons.
But then again this is a story, where you can reallydo many things you want with it. It doesnt not have to be like what we really think about as we hear the word "goblin" or any other mythical creatues.
But then again, there is also a korean movie that is similar with goblins but they are human form. So they could be some thing about that you can research
guys just wiki it it's not that hard;;; but in essense theyre nature spirites/low key gods who have powers and various forms
Im not familiar with the Korean's version of Goblins..what do they do and where they were come from supposedly? And the goblin's concept here is also different from the goblin from the wilting light manhwa....
When I hear goblin all i could think about was those dwarfish bankers from harry potter lol