Yoshimasa regarded controlling over the right of Japan-Korea trade as important such that he secretly owned Gafu and did not allow even the influential shugo (military governor) living in the capital to dispatch the Ojo-daijin envoy.
義政は日朝貿易権の統制を重要視しており、牙符を極秘裡に私蔵し在京有力守護に対しても王城大臣使の派遣を許さなかった。