The Joseon Tongsinsa is a symbol of good neighborliness and friendly cooperation between the Joseon dynasty and Japan. They were the nation`s first formal diplomatic envoys dispatched to Japan as mission of peace during the Joseon Dynasty. Arguably, from the year 1607 when the Joseon Tongsinsa were sent to Japan until 1811, there were twelve large scale diplomatic exchanges with Japan. Both countries made diplomatic interchanges through faith on even ground where this relationship was exemplified with the phrase “to enact in trust”. The 200 year long diplomatic friendship and cooperation between the two countries was made possible by the Joseon Tongsinsa, who as stated, played the role of diplomatic envoys of peace. The purposes of dispatching the Joseon Tongsinsa were to congratulate Japanese government of generals on their hereditary succession, but diplomats were sent with different covert purposes on all such occasions.