Sosen, the ninth tea master of the Shino school, established the iemoto system (the system of licensing the teaching of a traditional Japanese art), catching the tide of the Genroku era (the period when culture, especially among chonin [townspeople] flowered), therefore he was called as the restorer of the Shino school.
9世宗先は元禄期の時流に沿って家元制度を確立させ、志野流の中興と称せられる。