In 1183, he joined the army of MINAMOTO no Yoritomo to hunt down and kill the Heike family and prayed for the victory at Kohata Daimyojin Shrine; on March 4, 1184, he took part in the Battle of Uji-gawa River and delivered great performance leading to a victory.
寿永2年（1183年）に源頼朝の平家追討軍に参加し、山城国宇治郷にあった木幡大明神に戦勝を祈願し、翌寿永3年（1184年）正月20日、宇治川の戦いに出陣し、戦功を挙げて勝利。