It tells the story of a cynical and not-so-friendly government official named Eun Oh, who wanders the whole nation to look for his mother, who disappeared because of his mistake. Eun Oh has the ability to see ghosts, so he's used to being bothered by many kinds of ghosts. As a result, he isn’t afraid of ghosts anymore. Then, Eun Oh meets a virgin ghost named Arang. Before she became a ghost, Arang was a beautiful girl who was murdered. Arang asks Eun Oh to seek vengeance for her death, and Eun Oh tries to appease her request.