To treat a Tsushinshi envoy, one million ryo (assuming that one ryo is equal to one koku (roughly, rice of 180 liters), this amounted up to 1/4 of the four million koku from the land controlled directly by the bakufu) was required, and attention must also be paid to the fact that Hakuseki originally opposed the invitation of the envoy to Japan itself.
通信使接遇には一度に約100万両（1両＝1石換算で幕府の直轄領約400万石の1/4に相当する）かかるものであり、もともと白石は来日招聘そのものに反対であった点が注目される。