In those days, he belonged to Kyozondoshu and Omeisha and was actively involved in the civil rights movement; he wrote a paper about the Anglo-American legal system, proposed the adoption of the juror system, drew up a draft constitution, and made speeches at both oratorical and lecture meetings.
この頃、共存同衆や嚶鳴社に所属し、英米法制度に関する論文作成、陪審員制度の提案、憲法私案の作成、演説会・講演会での講演など活発に民権運動を行う。