They developed a strong partnership as they led the opposition movement against the government's policy of allowing non-Japanese to live anywhere in Japan, and Iwane ABEI, Tomofusa SASSA, Tomotsune KOMUCHI and some other activists formed the Dai Nihon Kyokai (Great Japan Association) in 1893.
彼らは内地雑居への反対運動を通じて次第に連携を強め、1893年に安部井磐根・佐々友房・神鞭知常らによって大日本協会を結成した。