La Helada

In this world all solid metals mysteriously turned to dust, and humankind went back to a stone like era.
Tools had to be remade in other materials. People look for alternatives, like animal bones, stone, wood, etc.
Because of all the metal structures becoming dust, lots of buildings fell, and transportations like trains, planes and boats are mostly gone.

Burian lives in a very cold place somewhere in Russia, he survives by hunting food for himself and trading with the people in exchange for a place to stay for a bit. He is always moving places by foot, with the desire of finding the ocean.