EVE is a member of the 7th Airborne Squad as part of the Eve Defense Force. Originating from the off-world Colony where the human race shelters, EVE's arrival on Earth is a disaster. As the 7th Airborne Squad begins its operation to reclaim the planet from the Naytibas, a ferocious surprise attack leaves her unit decimated. With the odds firmly against her survival, EVE is saved by a scavenger named Adam, who guides her into Xion, the last surviving city on Earth.