Shinichi's fragile peace has shattered. The humans who know of the parasites are starting to make their move, and the parasites themselves are beginning to cooperate and dispose of loose ends. With his human mind and parasite arm, Shinichi is a threat they can no longer ignore. His strange connection with the parasite Reiko Tamura continues to haunt him. Hunted by parasites, with human authorities edging ever closer to discovering him, Shinichi will have to keep his wits about him to survive.