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...
Especially when he's busy 
treating Nekoyanagi Pawoo,
،لا سيّما عندما يكون مشغولاً بمعالجة نيكوياناغي باوو
Vor allem, wenn er doch die Leiterin
von Imihamas Bürgerwehr behandelt.
Surtout si c’est pour le traitement
Soprattutto mentre è impegnato
 nella cura di Pawoo Nekoyanagi,
Principalmente por ele estar 
cuidando da Nekoyanagi Pawoo,
Особенно когда речь о лечении