There is an urban legend circulating in colleges and universities that a woman in black comes from the darkness. Whenever someone has darkness in their heart, the woman in the darkness will come to the other person and exchange a wish for the other person's soul. The story of a heroine who travels through various Korean dramas in the skin of an urban legend.
First World "The Heirs"
Second World "Goblin"
Third World "The Scholar Who Walks the Night"
Fourth World "voice"
Purpose: Atoning for sins and saving everyone