Historical novels often include the story of Soun HOJO as a masterless samurai in his later life, who went to Suruga seeking help from his younger sister, the governor's mistress, and rose to become the ruler of the Kanto area.
既に老いの境に入った一介の伊勢国の浪人(武士)が、妹が守護の愛妾となっていたのを頼りに駿河へ下って身を興し、後に関東を切り取る一代の梟雄北条早雲となる、というストーリーが従来小説などでよく描かれていた。