However, because Yoshitada was reluctant to kill Yoshichika, as they were brothers, Masamori was given the mission of quelling uprising in his place, which he is said to have accomplished in 1108.
しかし、義忠が兄を討てないと躊躇したため、正盛が義忠に代わり討伐に向かい、1108年に乱を鎮圧したとの知らせがもたらされた。