A beautiful assassin who carries the Baneful Blood in her veins. She often makes light of a situation but there is a depthless strength in her eyes. Her perfect figure, clad in an outlandish sexy bikini, is an irresistible sight to any men. She is Saki's half sister.
Saki is a girl of the same bloodlines as Aya. She is more susceptible to the affects of her blood than her sister. Her fragile frame contains a highly conflicted personality. One minute she is a psychopath taking an assassination work without a second thoughts, and the next she is a regular girl struggling to express her feeling for her sister.
A female member of the ZPF: a special force unit created to combat zombies. Annna is especially skilled with firearms. She guns down any and all undead stupid enough to stand in her way.
A descendant of the same Baneful Bloodline as Aya and Saki. She joined The Organization and its Baneful Blood research due to shared interests.
The main antagonist of Vortex and Special
The main antagonist of Zombie Hunters 2
, she turns out to not be so evil by the end though.