The Crystal War

Fifty years ago, when crystal giants [Driving Knights], over ten meters tall and weighing dozens or even hundreds of tons, first appeared on the battlefield, everyone knew the age had changed. From then on, the battlefield would belong to these noble high-magic warriors... Sadly, Adrian Eugene was born a low-magic person. No matter what he tried, he couldn't operate those enormous crystal-powered machines. And so Mr. Eugene became a proud and honored light infantryman in the army of the Kingdom of Nora.

Dagoel Noncommissioned Officers' School New Recruit Training Manual (Infantry):

1. If you think you can defeat a Driving Knight, go see a doctor immediately!

2. If you actually defeat a Driving Knight, go see a doctor right away... Hopefully you'll still be able to...

3. Don't let enemy infantry get close to our Driving Knights, unless you want to see a doctor...

4. Driving Knights have right of way, followed by bullets, and then... not you!

5. Don't try to abandon your knight and run away! Believe me, you can't outrun them...

6. Do not approach Driving Knights during thunderstorms!

7. This manual is for reference only.