Since Dotetsu, a child of Soen, was excellent at medicine which he devoted himself to, not to tea ceremony, it is believed that all the styles and techniques of the school were handed down to Soan FURUICHI who was a son-in-law of Soen.
宗圓には道鉄という子があったが、医業に秀でてこれに専念したため、婿の古市宗庵が一切を相伝されたと伝えられている。