"Living in constant fear of attack from machines, mankind depends on the cyborg corps known as the Guardians to keep them from harm as they await the arrival of the Kami, a godlike savior with mythical red blood who can grant only one wish to one person. Now, Shio, son of a Guardian, thinks he's found the Kami--and all the Guardians are at war to get that wish! Shio is forced by the tragedy of the machine war to team up with a mysterious girl from another world whose blood is the color red, just like the prophecies proclaim. Is the girl the human race's last hope for survival in a world overrun by metal?"--p.[4] of cover.

Originally published: Japan : Shueisha, 2004. "This book reads from right to left"--Cover.