In 1863, he established 'Roshigumi' with Hachiro KIYOKAWA, Tesshu YAMAOKA, Shungoro MURAKAMI, and Shuzo ISHIZAKA, who were the key persons of 'Torao no kai,' a Sonno Joi kyushinha group (radical group of Sonno Joi, expulsion of foreigners).
文久3年（1863年）尊皇攘夷急進派団体「虎尾の会」の中心人物、清河八郎・山岡鉄舟・村上俊五郎・石坂周造らと「浪士組」を結成。