For a long time the Republic of San Magnolia was attacked by its neighbor, the Empire, which created a series of unmanned military vehicles called the Legion. In response to the threat, the Republic has thus developed a similar technology, to balance the enemy's attack strength while in turn doing without human victims ... So, at least, the official version goes. Outside the 85 districts of the Republic, in an area that is theoretically non-existent, he continues to mercilessly fight the detachment of young women and men known as the Eighty Six. Like Shinn, who directs the actions of the young suicide bombers on the battlefield, or Lena, who coordinates the movements of the troops. This is the tale of the last days of their hard and sad battle.