Having sensed a state of political turbulence in Kamakura, gokenin started gathering there on May 8, 1205; Shigenari INAGE, a senior samurai who had retired to his own territory in Musashi Province, came to Kamakura with his retainers, having been called by his father in law Tokimasa.
同年4月11日(旧暦)、鎌倉に不穏な形勢ありとして御家人たちが集まりはじめ、所領の武蔵国に隠居していた稲毛重成が舅の時政に呼ばれ、郎党を引き連れて鎌倉へやって来た。