Kato, a murdered girl, sets out to solve her own murder. There's just one problem: she's dead. Nobody can see or hear her. However, Kato gradually realises that there are a few people who can actually see her, as if she’s among the living. Some of them she knows, others she doesn't. What has happened to her? Is she really dead and, if so, how come she’s still among the living? And how come a few people can still see her? And why them specifically? In her search to uncover the truth, Kato will discover that a lot of secrets lie dormant under the surface of her supposedly peaceful village community.