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...
But if I use this drug synthesizer
to produce Rust remedies,
لكن إذا استخدمتُ مُركّب العقار هذا
،لإنتاج علاج للصدأ
Aber wenn ich mit diesen Instrumenten
ein Mittel gegen den Rost finde,
Pero si creo medicina para el óxido
Pero si creo medicina para el óxido
Mais si je découvre
un traitement à la rouille,
Ma se uso questo reattore di sintesi
per produrre rimedi alla Ruggine,
Mas se eu conseguir fazer 
um remédio contra Ferrugem,
Но если с ним я смогу
создать лекарство от ржавчины,