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...
Little secret for you: my buddy's 
supposed to be bringing in a new type.
إليك سرّ صغير: يُفترض لزميلي أن يُدخل نوعاً جديداً
Ein Kollege hat vor,
Más tarde, un compañero
traerá una clase nueva.
Más tarde, un compañero
traerá una clase nueva.
J’ai un camarade qui va revenir
avec de nouvelles variétés.
Ho un piccolo segreto per te. 
Il mio collega dovrebbe portarne di nuovi.
Na verdade, um companheiro 
meu vai trazer um novo tipo.
Вообще-то, довольно скоро