Satou (佐藤, Satō) was a neighbor of the Kirishima family around the time when Arata Kirishima was caught by Yukinori Shinohara and Kureo Mado. She later sold out Arata's children, Touka Kirishima and Ayato Kirishima, to the CCG. In Seidou Takizawa's testament, he mentions that their then-neighbour Satou, was killed by a ghoul during his youth. It is not known if Takizawa's former neighbour Satou is identical with the former neighbour of the Kirishima family.