He was dislodged from Dazai-fu (local government office in Kyushu region) by his former retainer Koreyoshi OGATA, and it led him to throw himself into the sea at Yanagi ga ura Bay in Buzen Province to his death.
大宰府を元家人である緒方惟義に追い落とされたことをきっかけとして、豊前国柳浦にて入水自殺した。