In those days in Kyushu, the Chinzei tandai (office of the military governor of Kyushu) was established after the Mongol invasion of Japan, and the governance by the Hojo clan was reinforced, which aggravated grievances among gokenins (immediate vassals of the shogunate in the Kamakura and Muromachi through the Edo periods).
この頃の九州は、元寇の後に鎮西探題が設置され、北条氏による支配が強化されており、御家人達の不満は募っていた。