Japan has become a wasteland devastated by the Rusty Wind which causes all things to rust away. A suspicious looking priest visits a checkpoint all alone, yet on his back rests a bow priests wouldn't use.
Meanwhile, Milo, a doctor running a clinic in the town of Imihama, is researching new medicines in secret in order to save his older sister, Pawoo, who's being corroded by the Rust. But that day a stranger appears before him...
Look! It's the watch!
!انظري! إنّهم الحرَس
Wer von der Bürgerwehr!
¡Son los Vigilantes!
¡Son los Vigilantes!
Ah ! Des miliciens !
Guardate! Ci sono le guardie!
Ah! É um policial!
— А, городская стража!
— Крутые!