The professional career of the sisters Saori Yuki and Sachiko Yasuda began at elementary school in one of the famous Japanese choral societies, Hibari Children's Choral Society. They later became popular folksingers. After graduating from school, the sisters went in different directions. The elder sister, Sachiko Yasuda, stayed with the classical repertoire, and the younger sister, Saori Yuki, pursued a pop career. The two started singing together when Saori Yuki invited her elder sister to her concert as a guest performer in 1981. Since then, they have received many accolades including The Commissioner of the Agency for Cultural Affairs Award for their commitment to the heritage of Japanese folksong and to the Japanese language itself.