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.

As Lena lives a life of safety and comfort inside the walls of her city, the 86ers fight a terrible battle against an unstoppable and inhuman enemy.

Lena finds herself growing closer to the Spearhead squadron, or so she thinks. But a deadly battle drastically changes her perspective.

After a brutal death, Lena comes to terms with her real status as an Alba, and what it means to force another to fight for your sake.

Spearhead enjoys a brief respite near the cherry blossoms outside the wall, but a deadly attack brings the dangers of war even closer to home.

The crew of Spearhead has left on their final mission, never to return home. What awaits them outside the borders of their home?

As the war with the Legion rages on, the enemy makes a final march towards the Republic of San Magnolia. Lena waits to stop them, but...

At the end of it all and left behind once more, Shin is at the brink. Just then, someone appears, in a sea of red flowers...