Japanese missions to Joseon represent a crucial aspect of the international relations of mutual Joseon-Japan contacts and communication.
The unique nature of these bilateral diplomatic exchanges evolved from a conceptual framework developed by the Chinese.
[3] In 1377 Goryeo envoy Chŏng Mong-ju travelled to Tsukushi in Japan where he met Imagawa Ryōshun;[4] and the consequences of his efforts were only seen later.
Muromachi diplomacy also included the more frequent and less formal contacts involving the Japanese daimyo (feudal lord) of Tsushima Island.
[15] Japanese-Joseon bilateral relations were affected by the increasing numbers of international contacts which required adaptation and a new kind of diplomacy.