Moreover, although he claimed to be an emissary of Korea, Shiokatsu (also known as Keido SHIN) is believed to have been an imposter, and in the entry for the seventh day of the fourth month of 1420, Anri KYU, the official envoy of Sejong, is recorded as having been highly critical of Shiokatsu, saying: "What Shiokatsu has said is rash and thoughtless. To attack Tsushima is to attack Japan."
更に時応界都（辛戒道）は偽使者とされており、1421年4月7日に正式な宗氏の使者である仇安里が「時応界都（辛戒道）の言ったことは妄言である。対馬を攻めるのは日本を攻めるのと同じだ」と強く否定している。