The protagonist, Volts is a girl from The Cords drafted at 16 to fight in a war she didn't understand. She tragically lost both legs and a couple fingers on her left hand in an accident, and became the axiom she is today.
Volts lived in the Cords, a semi-active warzone. She grew up far from there, with a family who loved her. Her parents instilled a belief in her that she could be anything she wanted, and she's really never given that up.
At 16, she was drafted into the Dragon War. The age was dropped because of a shortage of troops, and this began her short stint in the war. She was flown out to Base Cailan, and trained in reconnaissance. She was sent out with Issa when their dragon was shot down, and she lost her legs to The Spartan Project.