This shows Hideyoshi might think that Japanese laws and rules such as Soubujirei (an order to ban battles between Daimyo) should be implicated to Korea; in fact on May 9, he sent a letter to a woman 'Koho' who served Hideyoshi and his wife to suggest the idea of conquest of Korea (Joseon Dynasty) after the conquest of Kyusyu as following; ' I sent an emissary to Korea and ordered to conquest that country as well'.
これは朝鮮が惣無事令などの日本の法令の適用対象として認識していた可能性を示すもので、実際に5月9日の段階で秀吉夫妻に仕える「こほ」という女性に対して「かうらい国へ御人しゆつか（はし）かのくにもせひはい申つけ候まま」と記して、九州平定の延長として高麗（朝鮮）平定の意向もある事を示す書状を送っている。