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troperville

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, cladinan outlandish sexy bikini, turns any man into her slave. She is Saki's half sister.

Saki

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.

Action Girl
A-Cup Angst
Badass Adorable
Badass Long Hair
Elegant Gothic Lolita: In Kagura.
Jerk with a Heart of Gold:
Tsundere: Type A, especially in Zombie Hunters.

Annna

A female member of the ZPF: a special 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.

Action Girl
Break the Cutie
But Now I Must Go
Girl With Guns
My Name Is Annna.
Small Girl, Big Gun: Some weapons in Special are bigger than her.

Misery

A descendant of the same Baneful Bloodline as Aya and Saki. She joined The Organization and its Baneful Blood research due to shared interests.

Himiko

The main antagonist of Vortex and Special.

Back from the Dead
Death Is Cheap: She dies at least once per game.
Elderly Immortal: In Special it is hinted that Himiko will never die.
Gag Boobs
Ms. Fanservice
Older Than They Look: Himiko looks much better than an average 300 years old woman.
Stalker with a Crush: She is really interested in Saki.