Reiko

Reiko as encountered by Aya and her party from time to time is in fact no single-person but clones of a scientist that is working to unlock the secret behind the zombie outbreak since its beginning. The clones at first were created for the original Reiko to experiment on with the Baneful Blood and presumably meant to be expendable. This has apparently changed later when, in order to more-efficiently carry out her will, the original Reiko wired herself into a computer network and began developing more-sophisticated clones to serve as her eyes and ears in the field. These new generation of c...