He took part in the Thirteen Days' Collapse in Nagota, which occurred in the ninth month of 1580; he led a group of more than 30 relatives, including Kohichiro FUKUI, into the mountains of Narutaki village and the area near Hasshoji village and killed Ujitomi YAMANA and his vassal Genzo SHINOMIYA, who were on the side of the losing Nanjo clan.
天正8年（1580年）8月にあった長和田の十三日崩れに参加して敗れた南条氏方の山名氏豊とその従者・四宮源蔵を鳴滝村の山中または八葉寺村付近において福井興七郎ら一族30余人を率いて殺害した。