It is claimed that when an individual dies but still has ties to the world of the living, such as in the case of revenge or caring for a loved one, their spirit remains on earth to complete the task before going on to the underworld.
Another popular tropes include men who cheat on their wives, and murder someone.
Folklore says that the gwisin ghosts are usually transparent, legless and float in mid-air.
[2] Female gwisin or known as Cheonyeogwisin usually have white Hanbok (한복) which are worn for funerals.
[2] They have long, drooping black hair and sometimes they are faceless, depending on their personality.