Olivia  always wanted a more exciting life, and after being reincarnated into the far future and a Galaxy in constant war, her wish was granted.  

Discovered to have a high compatibility with her new world's Technological System, he was drafted as a child into training to become one of their elite Mecha Pilots, the heroes of the Kingdom who face down even the mightiest of threats from inside giant Mecha, wielding the mightiest of weapons known to mankind.

All she has to do is prove himself worthy

Mecha Class