He was notified that the rivalry between the Imperial Court's side and Sabaku-ha (supporters of the Shogun)'s side in the Owari clan intensified, so he returned to Owari on February 13 and suppressed Sabaku-ha (The Aomatsuba Incident).
そのうち、尾張藩内で朝廷派と佐幕派の対立が激化したとの知らせを受け、1月20日尾張へ戻って佐幕派を弾圧する（青松葉事件）。