In the Genko Incident that started in 1331, he followed the Kamakura bakufu as obanyaku (a job to guard Kamakura) and participated in the Battle of Chihaya-jo Castle, in which he fought Masashige KUSUNOKI who raised an army in Kawachi Province.
元弘元年（1331年）から始まった元弘の変では、大番役も兼ねて鎌倉幕府に従い、河内国で挙兵した楠木正成の千早城の戦いに参加している。