The Tsushinshi who visited Japan in the Enkyo era (1744 to 1748) submitted a report to the Korean Imperial Court after returning from Japan, and in it, described the following: The bakufu informed lords that Tsushinshi came to Japan 'to pay tributes from Korea' and all of the past envoys knew the fact but acquiesced fearing the disputes that would occur otherwise.
延享度の通信使の朝鮮朝廷への帰国報告では、信使の渡来を幕府は諸侯に「朝鮮入貢」として知らせており、それまでの使節もそれを知りながら紛争を恐れて知らぬふりをしていた旨が記されている。