Since the Muromachi bakufu was on an equal footing with the Yi-Dynasty, it need not be allowed to have diplomatic relations with the Yi Dynasty; therefore, the Muromachi bakufu was permitted to freely have diplomatic relations with the Yi Dynasty.
しかし室町幕府は朝鮮王朝と同格の存在であり、許可を受けなければならない立場にはなく、自由な通交が認められていた。