The Republic of San Magnolia fights a safe humane war using drones. In reality, however, the drones are piloted by humans called 86s, who are called “pigs” and considered less than human.

The members of Spearhead are reunited as a massive Legion offensive looms. With the next deadly phase of the war almost here, how will they spend their remaining hours?

The operation to destroy the Morpho was a success, and Shin and his team fulfilled their promise to return to the Federacy alive. After enjoying a brief respite, they once again wished to serve in frontline units, but they received a certain notice from Ernst. After crossing the deadly battlefields of the Republic, they arrived at a new meeting in the Federacy. They fight, suffer, and see a ray of hope. This is a story of boys and girls who have begun to move little by little. At the end of their journey, what is reflected in their eyes?