She is very short and intelligent. As a Yellow, she is self-assured and thus often unwilling to step back for anyone. 
Strength and AbilitiesEdit
Being chosen to become a member of Egwene al'Vere's Council indicated that Nisao is also an high ranking sister, thus she is among the most strong channellers by Aes Sedai standards.
This is confirmed by "The Wheel of Time Companion" where her level of strength is described as 16(4).
Her area of study is the healing of the mind problems and diseases.
Swearing fealty Edit
She has allied herself with the Salidar Aes Sedai.
Nisao assists Myrelle Berengari in Healing Lan when he arrives, as she is interested in illnesses of the mind. When Egwene and Siuan discovered about this illegal bonding, Myrelle and Nisao where forced to swear fealty to the Amyrlin Seat, thus Nisao was among the first sisters to sworn fealty to Egwene; subsequently she is chosen to become a member of Egwene's Council. Nisao and the other Aes Sedai who swore fealty to Egwene are still unsettled about it. Nisao frowns constantly . She is with Egwene and Gareth when they survey the area around Tar Valon.
Despite this forced alliance to Egwene, Nisao proved to be loyal to her. She finds the bodies of Anaiya and Setagana, revealing to Egwene that they had been killed with saidin. She also comes to Egwene with the news that Kairen Stang was also found murdered, killed with saidin. Egwene told her to investigate discretely about it.
Even after Egwene was captured, Nisao continued her investigation and when Lelaine tried to stop her, because the sisters involved were from the Blue Ajah, Nisao did not ended.
In fact she comes to seek a meeting with Romanda Cassin. She tells Romanda that Lelaine Akashi has forbidden her to carry on investigating the deaths of both Kairen and Anaiya, citing that it is Blue Ajah business. But Nisao complained that she was charged by Egwene to investigate those murders and Romanda gives her permission to carry on looking for the murderer.
Black Tower delegationEdit
Somehow Lelaine (with probably some aid from Sheriam) finds a way to send away several sisters sworn to Egwene.
In fact Nisao, Myrelle, Theodrin and Faolain are part of the delegation sent to the Black Tower and has not been heard from them in some time. This is a very strange choice to send Nisao because she has a Warder. Strange choices also for Theodrin and Faolain that are not recognised full sisters from the majority of the rebels.
It is possible, but unlikely, that Nisao was among the Black sisters in the rebel delegation who were exposed, thanks to Seaine Herimon being dispatched from the White Tower to warn the delegation of the Black Ajah.
It is presumed she survived the Last Battle.
- ↑ 1.0 1.1 Crossroads of Twilight, Chapter 16
- ↑ 2.0 2.1 A Crown of Swords, Chapter 12
- ↑ 3.0 3.1 Crossroads of Twilight, Chapter 20
- ↑ Lord of Chaos, Chapter 8
- ↑ Lord of Chaos, Chapter 30
- ↑ A Crown of Swords, Chapter 16
- ↑ Crossroads of Twilight, Chapter 30
- ↑ Knife of Dreams, Chapter 23
- ↑ The Gathering Storm, Chapter 45