Saya

Saya is Jin Kisaragi and Ragna the Bloodedge's sister.

Information
Saya was born with a frail body, and throughout her life was bullied by her brother Jin. Her other brother, Ragna, was much more caring, and spent much time with her. Jin grew jealous of the relationship Ragna and Saya shared, and eventually attempted to kill her. She was kidnapped by Terumi Yuuki. Noel Vermillion, Lambda-11 and ν-13 are all copies of her, sharing her physical traits and some of her memories. During BlazBlue: Continuum Shift it is revealed that Saya had been alive throughout the years, and was currently the Imperator of the NOL; she destroyed the Amaterasu Unit; and Hazama and Relius Clover are working for her. She hasn't aged since the day she was kidnapped. Her appearance has also changed. She now has red eyes and purple hair.

Trivia

 * Saya can be said to be the BlazBlue counterpart of Guilty Gear's That Man. Both are very mysterious characters that age abnormally (Saya hasn't age since she was kidnapped, That Man ages backwards). Both wield immense power that far surpasses that of the main protagonist, and they have numerous servants which includes some of the playable characters.
 * Concerning their two main servants; Both have one that is calm and collected (Relius/Raven) and another who is wild and destructive (Terumi/I-no)