In Japan, where disturbances between the Northern and Southern Courts had not been contained (in particular in Kyushu district including Hakata), Imperial Prince Kanenaga (Kaneyoshi) of the Southern Court who received a messenger from Ming was sealed as 'King of Japan.'
日本側では南北朝の動乱が（特に博多を含む九州においては）収まっておらず、当時九州の有力者であった南朝側の懐良親王が明の使者に応じて「日本国王」に封ぜられている。