Seong-won has been experiencing mysterious headaches for a number of days. One thing is clear: this is not something that can be treated in a hospital. He ultimately encounters Nuri, an upperclassman said to be the son of a shaman, and urgently seeks his assistance. With Nuri's help, the issue appears to be resolved—at least for the time being. Shortly after, however, a ghost who has developed feelings for Seong-won starts to cling to him. Eager to become closer to Nuri, Seong-won requests his help in watching over the new spirit, "Mari," leading them to spend more time together. A love story unfolds between a man plagued by ghosts and a man who can perceive them!