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 was at my wits' end, wandering 
through a field of floating algae at night,
كنتُ في حيرة من أمري، تائهة في حقل
،من الطّحالب العائمة ليلاً
Als ich weder ein noch aus wusste
und des Nachts durch das Moor stapfte,
Vagaba sin rumbo
por el páramo de algas flotantes
Vagaba sin rumbo
por el páramo de algas flotantes
Désemparée,
je marchais la nuit dans Ukimobara.
Mentre la notte vagavo in una massa di alghe 
galleggianti, senza sapere dove sbattere la testa,
Eu estava no bico do corvo, vagando à 
noite por um campo de algas flutuantes
Я как-то ночью заплутала
и гуляла по полю порхоряски...