Kim Hyun-ji (Kim So-hyun) was a middle high-school student who did nothing but study her entire life until she was killed in an accident the day before her college entrance exams resulting in her becoming a ghost. Hyun-ji wanders around the world for years until she meets Park Bong-pal (Ok Taec-yeon), a guy who is able to communicate with ghosts. He was an exorcist due to the need of money and he always listens to the stories of ghosts and helps them pass on to the other world.