It is said that the team of envoy made a pledge to become vassals of the Tang Dynasty in Gao Zong (Tang territory) during the Taizan Hozen ceremony (a ceremony thanking for the peace and harmony to the heavens by the king).
その大使らは、唐の高宗の泰山封禅儀式の際に唐に対しての臣従を誓ったとされる。