Meanwhile, a third chiropteran reveals itself and begins making its way to the base.

Maya, a prototype, still required blood and could transform like other chiropteran.

The final chiropteran then decides to flee, attempting to stow away on a departing cargo plane.

Working against both sides are the Sif, a group of escaped artificial chiropteran created by Diva's group.

David and Saya give chase and she manages to strike the chiropteran and mortally wound it.

Maya searches for Saya, desiring to have Saya eat her so they can become one pure-blood chiropteran.

At least one chiropteran has managed to infiltrate the air base, and it is only a matter of time before they feed again, go into hibernation, and become untraceable.

One of them, David, begins to brief Saya on another mission, while the other, Louis, discovers that the man Saya has just killed was probably not a chiropteran.

Also, other scenes of Hitomi can be seen; Hitomi sitting on a bunch of rocks with steam around her, and Hitomi singing in a subway-like setting (this is also where the fight against the second Chiropteran takes place).

He started out as Saya's play partner and/or servant, but after suffering an accident where he falls from a cliff and nearly dies, until Saya remembers she has "special blood" and feeds her blood to him, transforming him into a Chevalier, a powerful chiropteran which serves the queen chiropteran.

She gains heightened strength and speed, allowing her to use a katana given to her by the man, and by adding her blood to the katana and then stabbing the Chiropteran, she is able to kill it due to the special nature of her blood, which crystallizes the Chiropteran's blood when they come in contact.