Mrs. Sato was the wife of Hiroshi Sato and the mother of Asami. A loving and caring woman, she was killed by a member of the Agni Kai Triad during a break-in and robbery at the Sato estate.[1]
Mrs. Sato met and married Hiroshi Sato, and in 152 ASC she gave birth to their daughter, Asami.[1][2] Six years later, the Agni Kai Triad raided the Sato estate, and Mrs. Sato lost her life during the break in at the hands of one of the members.[1]
Mrs. Sato's death became the primary factor in manifesting Hiroshi's deep hatred toward all benders, eventually causing him to join the Equalists to avenge her death.[1]
Mrs. Sato shares a similar past to that of Kya, the mother of Katara and Sokka, who was also killed by a firebender that entered her home, albeit for different reasons, when her children were very young.