The protagonist Kanna Isora is a normal high school girl who goes to school in her hometown.
With the same never changing rhythm she goes to school and comes back home.
It's not like it's boring, but she's living her life in a normal average way.

However that changes completely with the crash of a single airplane.
The code to an unprecedentedly powerful weapon is hidden in her genes.
All of a sudden the world begins to move.

[Translated from the official website]