I am the heiress of an ancient clan of evil spirit slayers. That is, a person who should never have become a doctor for the undead. But life is sometimes unpredictable, so now I am an intern at Epion, one of the best hospitals in the magical world. I came here with a special mission: my brother died here, and I simply must find the killer. No one knows about my true goal, except for one overly curious ghost. To avoid detection and continue the investigation, I am forced to treat those whom I have been taught to hate all my life, gradually realizing that many of them are not so bad...