He studied under Kinetaro ITO (later, Kinetaro), the school manager, while also working with Tainoshin SHINOHARA at the Kanagawa Magistrate's office (also where Jibu'uemon KUBOTA worked) on security for Yokohama City's Enclave for foreign residents.
塾頭伊東甲子太郎（後の甲子太郎）に師事し、一方で、篠原泰之進と共に窪田治部右衛門の神奈川奉行所勤務に随行し、横浜市外国人居留地の警備の任にもついていた。