KPop demon hunters Gwi-ma who is he inspired by

Hey im kinda new to k-pop and korean culture in general and id like to ask is there anyone who can explain if gwi-ma from kpop demon hunters was based off a demon or spirit from korean myth or something or if this isnt the right sub to post it can u direct me to the right one?

Just gwi-ma is so present in the movie that it feels like hes based off something and idk what... plz help a kpop noob and korea noob!!!