News that the retired Emperor was raising an army caused great consternation among the samurai of Kamakura, but according to the "Azuma kagami" (Mirror of the East) and the "Jokyu ki" (Chronicle of the Jokyu Era), Masako HOJO responded, 'The obligation we bear to the former great general of the Right (Yoritomo) is surely higher than a mountain, and deeper than the sea.
上皇挙兵の報に鎌倉の武士は大いに動揺したが、『吾妻鏡』や『承久記』によれば北条政子が「故右大将（頼朝）の恩は山よりも高く、海よりも深いはずだ。