He took refuge in the Sendai Domain and he was put up as the leader of Ouetsu-reppan alliance (One theory has it that he used 'Mutsutoki' as his secular name (imina)).
仙台藩に身を寄せ、奥羽越列藩同盟の盟主に擁立された（一説には俗名（諱）を「陸運（むつとき）」としたという）。