Kazuki Kazami

is Yuuji Kazami's elder sister who disappeared in an accident when Yuuji was ten years old.

Appearance
Kazuki has long white hair extending past her waist. She has purple eyes and wore her Takizono Private Academy uniform during the minibus accident in 2005.

Personality
Hailed as a genius from everyone around her at a very young age, Kazuki is a very logical, rational, and calculating person; however she has a shown a lighter side of herself from time to time, as she frequently liked to toy with Amane. She harbors a very strong affection for her brother, Yuuji; taking on the role of his protector.

History
Kazuki was involved in the minibus accident of 2005, which was when and where she met Suou Amane. Roughly two weeks after the accident, Kazuki gave Amane the chance to flee and find help, while she remained behind. Kazuki was one of the last two survivors of the incident, besides Amane, along with Yoshihiko Ochi. Shortly after Ochi passed away from malnutrition, Kazuki and the deceased victims of the crash were found by government agents. Kazuki was saved by the agents, and brought to Ichigaya headquarters, where she would become part of their "Thanatos System".