In 1193, making use of the occasion of Fuji no Makigari (the hunting session at Mt. Fuji), in collaboration with his younger brother Tokimune, he killed Suketsune KUDO to avenge his father's death, but he was subjugated by Tadatsune NITA.
1193年（建久4年）富士の巻狩りが行われた際、弟時致とともに父の敵工藤祐経を殺害したが、仁田忠常に討たれた。