When Kaneto OKAWA, an old retainer of the Fujiwara clan, rose in rebellion by collecting the remnants of a defeated party in 1190, Mitsuyuki was summoned to raise an army for suppression.
建久元年（1190年）、藤原氏の旧臣大川兼遠が残党を集めて乱を起こすと、平定の軍に光行を参陣させる。