On August 6, 1867, Murata went to Yamaguchi with a letter from Saigo describing the fact of the Satsudo Meiyaku (the alliance with Satsuma and Tosa), and on his way back, he went to Kyoto along with Yajiro SHINAGAWA and Shuzo SERA.
慶応3年（1867年）7月7日、薩土盟約の事情を記した西郷の書簡を持って山口を訪れ、帰りに品川弥二郎・世良修蔵を伴って上京した。