Miyamura is quiet and keeps to himself, and honors student Kyoko is cheerful and popular. They are polar opposites but both have a secret persona that no one knows about. They get to know each other after randomly discovering each other's secret side.

A 48-year-old unsuccessful actor confronts his past when he undergoes hypnosis after a mysterious teenager hands him a note.

The “Amazon Livestock Project,” a mysterious care facility, the Amazon extermination organization 4C (Competitive Creatures Control Center) pursuing Haruka Misuzawa . . . all come together in a tale of symbiosis and competition; the mortal combat between the carnivore and herbivore. And, finally, an end to the troubles and conflicts of the Riders, two beings confronting a fierce fate.