Nothing has been heard of him since his last record of the fact that he and his 38 colleagues including Jiro YAMAGUCHI alias Hajime SAITO stayed in an inn called Saitoya located at the foot of Aizu-Wakamatsu-jo Castle outside its outer moat in October 7, 1868.
二十二日に斎藤一こと山口次郎ら38名と共に会津若松城下外堀外の斉藤屋に宿泊した記録を最後に消息を絶った。