What happens when everyone you love turns into a machine?

In another post-apocalyptic world, we meet Eve, one of the 2% of the population of the human race that's left in the entire world. The rest were turned into "Banes".

Years ago, humans succeeded in creating the perfect technology which could grow and replace our living organs with machine ones. With this, death was possible to escape from. However, something went wrong and the machine overpowered the human until the soul is gone.

The last of the few remaining resistance is fighting to save humans from extinction and somehow, Eve is the key to all of these. Will she save the world or not?