Kurokami no Onna

She is an amnesiac woman taken in by Nona to Quindecim and hired as Decim's assistant.

When she first awoke, she appeared to be an innocent but skeptical woman. However, once she became accustomed to living in Quindecim, she acted as a strong-willed woman who always spoke her mind whenever she felt it was necessary. She is not afraid to disagree with Decim if she believes he is wrong.