Sakuya

was a citizen of the Land of Silence.

Kara Actuation Arc
Kasuya came into possession of the cell of Hashirama Senju. Hearing that it could restore her youth, she sent her butler to get into contact with rogue medical-nin Kirisaki. While waiting for his arrival, Asaka and Yūga, who are after the cell, sneaked into her castle and assassinated her.