After defeat at the Battle of Toba-Fushimi, he sailed back to Edo with other members and although according to several theories he joined the Koyo Chinbutai (the successor to the Shinsengumi), he was forced to drop out halfway.
鳥羽伏見の敗戦後、隊士と共に海路江戸へ戻り、甲陽鎮撫隊に参加する（諸説あり）も中途での落伍を余儀なくされる。