Pre-apocalyptic ? Post-apocalyptic ? (Intro)

This is a story of a city built from what had remained, but which will not remain. It is a temporary city but it is also a place of great biotechnological progress and preservation. Although built on the backs of people who simply won't let themselves be wiped out, Redmoss City was an unfortunate one. And its story is all here, in a compilation of diary entries by a young girl.