After the Battle of Dan no ura in 1185, he was in charge of execution of TAIRA no Munemori who was the commander of the TAIRA family and was captured in the battle, and reported it and Shigehira's last to Yoritomo in Kamakura.
元暦2年（1185年）の壇ノ浦の戦い後、捕虜となった平家の総帥・平宗盛の処刑を担当し、その事と平重衡の最期について鎌倉の頼朝に報告した。