Yoritomo schemed to make his eldest daughter, Ohime, marry the emperor to enter Kokyu (the palace where the emperor's wife and concubines lived); this created a latent hostility against Kanezane himself and his daughter Ninshi, leading to a distant relation between Kanezane and Yoritomo.
頼朝が長女大姫を後鳥羽天皇の後宮に入内させようと工作したことは、兼実自身と娘の任子の潜在的な敵対者を作ることにつながり、両者の関係は冷却した。