There are various opinions about Yajiemon becoming a ronin; the one from "Seishinfu" (the biographies of retainers of Shibata Domain) is most convincing that Yajiemon was driven out of the domain to take the blame for the accidental fire of a castle turret.
この弥次右衛門の浪人については諸説あるが、櫓失火の責を負って藩を追われたという『世臣譜』にある説が有力。