So let me get this straight...
Humanity moves to space because of pollution, but started a war (in space) and consequently lost power due to the damage.
They move back to Shinshuu, the only land hospitable to man. Time is essentially restarted in terms of history era's, but Japan is conquered by several foreign countries and divided. Only the flying city Musashi is independent (essentially Japanese) from all other countries.
Do I have this straight?
And if so, what does the plot entail? What is the main character doing? Who's fighting who? I don't want the setting, I want a plot!
