Saya's twin sister. She has the power to control chiroptera.
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Diva was born as Saya’s twin sister and into a seedy experiment. She was locked into a room secluded from others and had to raise herself and munch on human bodies to live instead of their blood alone even though the victims’ blood was only needed. She had a friendship with Saya up until the day Diva was accidentally released from her room, thus causing an confrontation that had many people killed and a mansion trashed. Along with help from Amshel, she wants to achieve her dream of eradicating all humans in order for chiropterans to rule the world.