Yazuko is a minor character from the Nickelodeon television series, Avatar: The Legend of Korra. The deceased wife of Hiroshi Sato, and by extension the mother of Asami Sato, Yazuko dies prior to the events of the original series. While she does not appear directly in the Non-Disney Villains Tournament, and even her role and status was replaced by the villainess, Lust, as the wife of Hiroshi and the mother of Asami, her archive footage is used to display the Sato family portrait.
Non-Disney Villains Tournament
In this war, the design, continuity, and role of Yazuko is passed down to Lust. For more information, see here.