The Republic of San Magnolia, made up of eighty-five territories, has long been at war with a neighboring country, but has created a series of supposedly unmanned drones that allows them to wage battle with zero casualties. However, the truth is that beyond San Magnolia’s utopian-like walls lies a forsaken eighty-sixth sector, whose population, tasked with piloting these “unmanned” mecha, are regularly slaughtered on the battlefield. Lena, a handler employed by the San Magnolia military, has just been assigned to command a detachment of these Eighty-Sixers.