For the purpose of having orthodoxy granted by an emperor of China, there had often been envoys sent in the past but, for the first time, they were sent as an envoy in order to emphasize independence of Japan.
中国皇帝から政権の正統性を付与してもらう目的で、過去にもたびたび使節が派遣されていたが、初めて日本の独立性を強調する目的で使節が派遣された。