Kim Jung So-san
Born in Okayama City in 1909. (Toyo's younger brother). In 1914, he served as an assistant to his older brother Toyo (until 1951). He built a climbing kiln in Maruyama, Okayama City. He left behind many masterpieces of tea ceremony pottery and was highly praised as the source of Hidasuki. In 1983, he was recognized as an Important Intangible Cultural Property of Okayama Prefecture. He passed away in 1995.