Then an advisory council was formed by Keiki HITOTSUBASHI, who supported Kobu gattai, Katamori MATSUDAIRA (Head of the Aizu clan), who was the Military Commissioner of Kyoto, Shungaku MATSUDAIRA (former Head of the Fukui clan), Yodo YAMAUCHI (former Head of the Tosa clan), Munenari DATE (former Head of the Uwajima clan) and Hisamitsu SHIMAZU.
公武合体派の一橋慶喜、京都守護職松平容保（会津藩主）、松平春嶽（前福井藩主）、山内容堂（前土佐藩主）、伊達宗城（前宇和島藩主）、島津久光らによる参与会議が成立する。