The sea ghouls that suddenly hit a village one day. The protagonist, Han-cheon, who fled the village to find a way to live after losing his mother to a sea ghouls, It is learned that the mother was not actually killed by the haegui, but was kidnapped for food. Han-cheon goes on a dangerous journey to save his mother…  Demons of the sea  Haegwi  Heron  해귀