In July, 1863, when he got information about the Satsu-Ei Senso (War of Satsuma and Great Britain) which happened by incident of Namamugi last year, he returned to Kagoshima prepared for punishment, and tried to enter the war.
文久3年（1863年）7月、前年の生麦事件を契機に起きた薩英戦争の情報が入ると、処罰覚悟で鹿児島へ帰り、参戦しようとした。