He raised an army and set up Tenchu-gumi (royalist party to inflict punishment) in Yamato Province in order to take the lead of Yamato gyoko (Imperial Trip to the Yamato Province), and became one of the three presidents of Tenchu-gumi together with Torataro YOSHIMURA and Keido MATSUMOTO.
大和行幸の先駆けとなるべく大和国で挙兵して天誅組を結成し、吉村虎太郎、松本奎堂とともに天誅組三総裁の一人となる。