Six Bolt

is a Japanese light novel series written by Okina Kamino, with illustrations by Kouji Ogata. The series began publication on December 10, 2003 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
In 2015, human beings were unilaterally sentenced by aliens and decided to wage a limited war for the survival of the earth. 17-year-old high school students were selected as warriors. Weapons are reinforced armored clothing prepared by aliens. While the target people are randomly selected in various countries around the world, it has been decided that a high school in Tateoka City will finally be designated in Japan and the first battle in Japan will be held. The 556 students were not given the right to refuse and were taken to a government training facility, where they spent three months of rigorous exercises before the battle began. And on the day of the battle. However, what was waiting for them on the battlefield was a terrible battle beyond imagination ...