Yasu

Yasu (野洲) is a member of the Kouga School of Ninjutsu.

Background
Yasu's background is largely unknown, but she was apparently trained alongside Asai, Sakata, and Tsurigane Saryou when she was still with the Kouga.

Baggage City Arc
Due to the times changing and needing to contend with the likes of Academy City and Baggage City, she, Asai, Sakata, and Oumi Shuri, go to Baggage City for the Natural Selector tournament in order to find an interesting person that they could get and analyze their abilities for the sake of the Kouga School.

Yasu, along with Asai and Sakata, later come upon Kihara Enshuu, while Shuri contacts them regarding a treasure she found fit for the Kouga, though only their screams reach their ears, as they describe her as a monster. She is presumably killed by Enshuu.