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.

Lena learns the truth about the upcoming end of the war, and how the Legion is a much more deadly threat than she thought.

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.

As the day of the festival arrives, Lena and Shin watch the fireworks and enjoy a brief respite from their battles.

Spearhead is given orders to undertake a pointless march into enemy territory, and not to stop until they're dead. Lena tries her best to stop this suicide mission from happening.

Shin confronts his brother deep within Legion held territory. But even if he wins, there's no going back.

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

Spearhead Squadron comes to the end of their long road, and a new journey begins for Lena...