After the Battle of Toba-Fushimi, he remained in Edo (present Tokyo) to plead with the restoration government to understand the situation of Katamori returning to Edo and Aizu, but he was imprisoned by the new government army.
鳥羽・伏見の戦いの後、江戸そして会津に戻った容保らの立場を新政府に嘆願するため、江戸に残ったが新政府軍に投獄された。