Going to the capital, Yoshikatsu was appointed as gijo (an official post) in a new government and it was decided to notify Yoshinobu of Jikan nochi (an order for surrendering the Shogunate post and domains to the Imperial Court) at Kogosho Conference (the meeting held in the presence of the Emperor in the Kogosho Conference Room of Kyoto Imperial Palace) on January 3, 1868, and then Yoshikatsu took on the role of giving a notify.
慶勝は上洛して新政府の議定に任ぜられ、12月9日の小御所会議において慶喜に辞官納地を催告することが決定、慶勝が通告役となる。