The drama is based on a traditional Korean legend. The story is set during the Joseon Dynasty, in the town of Miryang. Arang is the pure and innocent daughter of a magistrate. Having grown up without her mother, Arang is raised by a cruel caretaker, who plots to have her raped by a servant in order to dishonour her. But the young girl resists the attack and her tormentor ends up stabbing her, abandoning her body in the forest. Arang’s father believes his daughter has run off with a man, bringing shame upon the family; thus, overcome with shame, he resigns. According to legend, a succession of magistrates take up their posts in the town, and all flee in terror when Arang appears to them as a ghost, pleading for help. Until a new magistrate arrives in Miryang: the young Lee Eun Oh. Arang appears to him, just as she has always done to those who came before him, and the young man, instead of fleeing, feels pity for her and promises to find her killer to avenge her death. But what would happen if, in the meantime, the two were to fall in love?