A video content creator fabricates sightings of mythical creatures for online fame but faces a terrifying reality when a genuine monster wreaks havoc on his team. Simultaneously, students battle a sandworm-like predator within their school premises, sparking a fight for survival. As mysterious creature attacks escalate, researcher Sousuke Banba takes it upon himself to uncover the truth behind these phenomena, guided only by the enigmatic term 'Kagewani.' His quest leads him to investigate the scenes of these incidents, aiming to eliminate the threats. Yet, he soon realizes the danger hits closer to home when the pharmaceutical giant Sarugaku interferes with his pursuit.