She is the target of the vampire in episode 1

In a country where companies are categorized into many subdivisions and corporations, only one of them is a ghost corp - the Phantom quest corp. When otherworldly supernatural phenomenon threatens the city and its populace, Ayaka Kisaragi and her employees are on the job to fight any and all supernatural menace.
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(Source: Anime News Network)

Other roles include Helena in the video game series "Dead or Alive" and Niki in "Dead or Alive Xtreme 1&2".

Makiko Mizuno