Joice lives a quiet, guarded life carrying a terrifying inheritance from her late mother: a dormant alien battle core known as Extremisect. For a decade, she keeps the apocalyptic technology hidden from the authorities, determined to remain an ordinary schoolgirl. That peaceful illusion shatters when subterranean bio-mechanical horrors erupt through the asphalt to butcher her closest friend.
Unleashing the armored exosuit, Joice slaughters the invaders and instantly transforms into the metropolis's sole hope against total annihilation. But as urban defenses crumble, an ancient entity rises from the hive abyss, claiming blood kinship with the girl inside the armor and forcing her to choose between humanity and her alien blood.
