However in 1822 (the late Edo period) Seiki INAGAWA, a feudal retainer of the Usuki clan, was instructed in the new style of swimming from Kyuma Katsushige YAMAUCHI, a feudal retainer of the Iyo-Matsuyama clan, Iyo Province, who studied Shinden school.
しかし、江戸時代後期の文政5年（1822年）に神伝流を修めた伊予国伊予松山藩士の山内久馬勝重から臼杵藩士稲川清記が新たな泳法を伝授される。