Ichio suggested that Sadaaki go to Kashiwazaki, Echigo Province, which was the divided territory of the Kuwana domain, and he boarded the Prussian ship 'Costa Rica' from Yokohama City bound for Kashiwazaki.
定敬は一翁から桑名藩の分領である越後国柏崎へ赴く事を勧められ、横浜市からプロシア船「コスタリカ号」で柏崎へ渡る。