Shogun Yoshimitsu ASHIKAGA was enraged because Setsudo Soboku, the 6th chief priest of Myoshin-ji Temple, had a close relationship with Yoshihiro OUCHI who flew the flag of revolt against the Ashikaga Clan.
妙心寺6世住持の拙堂宗朴（せつどうそうぼく）は、足利氏に反旗をひるがえした大内義弘と関係が深かったため、将軍足利義満の怒りを買った。