During the Boshin War, because the lord of the domain Nagamichi OGASAWARA agreed to go to Ezo with Takeaki ENOMOTO, he joined Shinsengumi under control of Toshizo HIJIKATA and went to Ezo with him.
戊辰戦争時、藩主小笠原長行が榎本武揚らと同意して蝦夷地渡航を決意したため、土方歳三配下の新選組に入隊して共に蝦夷地へ渡る。