Although there is no evidence of an official negotiation between Wakoku and Wu in the Three Kingdoms period, two Gabuntai Shinjukyo Mirror (Mirror with figures of duties and sacred animals) with the name of the era in Wu exists as a relic.
中国の三国時代の呉と倭国が公的に交渉を行った文献は全くないが、遺物としては呉の年号を記す画文帯神獣鏡が二面存在する。