Desperately wanting to be reunited with the surviving members of her family, and needing to unlock the secrets hidden within her own body, AICO Tachibana and Yuya Kanzaki guarded by only a small contingent of divers, break through into the dangers of the restricted area. But fear chases AICO and her allies in the form of violent man-made lifeforms called Matter! Other potential obstacles include the machinations and motivations of the government and other institutions, all leading to twists no one can predict. The only question is, can AICO and her group survive it?