However, when Koyo Chinbutai (a military unit formed specially for the campaign in Kai Province, Shinsengumi) visited Koshu in March, 1868, he joined them, at the age of 56.
しかし、慶応4年（1868年）3月に甲陽鎮撫隊（新選組）が甲州へ訪れると、56歳にして入隊。