The punitive force at the time planned to weaken the Uragami clan by attacking castles belonging to the Uragami sect such as Norihisa Nakamura who was the military governor of Mimasaka province and turned to be the Uragami clan.
この時の征伐軍は浦上氏の本拠への攻撃よりも、浦上派へ転身した美作国守護代の中村則久など浦上派の諸城への攻撃で、弱体化を図っている。