Ambushed from the Start, I Was Reborn to Build a Star-Destroyer

A physicist announces a light-powered engine, then dies in a bizarre car accident.

His research is stolen by arms dealers and used to manufacture weapons.

After coming back to life, he finds himself imprisoned in a supermax facility 1,300 meters underground.

Can the protagonist break through the odds, get his revenge, and reclaim his research?

To find out how it ends, follow the story.