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...
I heard arrows, guns, 
and so on were forbidden
سمعتُ أنّ السّهام والأسلحة الناريّة
وما شابه كلّها ممنوعة
Irgendwas von wegen,
weil Pistolen und Pfeile
On ne sent pas
le poids de la vie sinon.
Da ciò che so, archi, pistole e simili 
sono proibiti
Soube que proíbem flechas, armas e afins
Мол, нужно чувствовать груз убийства,