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 wouldn't mind if it 
hurt a little, you know?
لن أمانع إذا آلمني قليلاً
Würd mich auch nicht stören,
wenn’s ein bisschen wehtut.
La douleur n’est pas vraiment
le problème.
Un pochino di dolore non mi dispiace, sai?
Se doer só um pouquinho, tudo bem.
Вообще-то, я и не против, если больно...