After the Oetsu-reppan alliance was abrogated, he went to Sendai and joined Takeaki ENOMOTO fleet, Toshizo HIJIKATA and others, and crossed the sea to Ezo (present Hokkaido).
奥羽越列藩同盟壊滅後、仙台へ向かい、そのとき榎本武揚艦隊および土方歳三らと合流し、蝦夷地へ渡った。