However, when no agreement was reached, he used a bold method of negotiation; he intentionally got drunk at a banquet with Prince Kuni Asahiko and reviled at Munenari DATE, Shungaku MATSUDAIRA and Hisamitsu SHIMAZU, and furthermore, violently said to Nakagawa no Miya, "how much is SHIMAZU paying you!" so as to breakdown their organization.
しかし会議がまとまらないと見るや、故意に久邇宮朝彦親王らとの酒席で泥酔し、居合わせた伊達宗城、松平春嶽、島津久光を罵倒、さらに中川宮に対し「島津からいくらもらってるんだ！」などと暴言を吐いて体制を崩壊させるなど、手段を選ばないとも言える交渉を行なった。