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've never heard of a sister striking 
her younger brother's vital points.
لم أسمع بأخت تضرب النقاط الحيويّة لأخيها الصّغير
Welche Schwester
¿Qué hermana deja inconsciente
a su hermano menor?
¿Qué hermana deja inconsciente
a su hermano pequeño?
Je me suis fait assommer
par ma propre sœur !
Non si è mai sentito di una sorella
che colpisce il fratello più piccolo ai punti vitali.
Nunca ouvi falar de uma 
irmã que golpeia o irmão.
И какая сестра