Joseon Tongsinsa of Bunka Year 8 Sinmi(181 1), exchanged credentials on Tsushima, a border island. Accordingly, the Tongsinsa party just traveled back and forth between Gyeongseong and Tsushima, and the itinerary was greatly reduced. Meanwhile , the Japanese Shogunate's Envoy Tadataka Ogasawara, the Lord of Kokura Domain producing 150,000 seok of rice, traveled back and forth between Edo and Tsushima. Concerning Tongsinsa in the Bunka Era , it is necessary to investigate the Japanese envoy party. Thus, this study would investigate and verify the movements/roles of Envoy Tadataka Ogasawara and the Kokura Domain party. The roles given by the Shogunate for Envoy Tadataka Ogasawara and Kokura Domain included preparing a ship traveling to Tsushima, leading about 1,500 manservants including crewmen, shuttling between Edo and Tsushima and holding a series of rites thoroughly. Thus , this role was completed by Tadakata and Kokura Domain. This burden was never light and converted at least to 230,000 nyang in money terms. It is assumed that most of the gold and silver reserved by the Kokura Domain were used. And yet, it is assumed that disposition for “Black & White Fuss," a fuss in the family ended up light because of the achievement of playing the big role. By receiving(exchanging diplomatic gifts with) Tongsinsa in the Bunka Era, Shogunate's burden was reduced. That did not necessarily reduce all the burden of lapan, and in particular, it was a heavy burden for Kokura of which the Lord was Envoy Tadataka Ogasawara. And yet, after completing the envoy's roles, Kokura Domain suffered financial difficulties, but even the people who actually bore the burden as Tadataka Ogasawara took on the envoy's roles recognized the envoy's roles in receiving Tongsinsa as the highest honor. In addition, as a result of an analysis of the concrete examples of the contact between Envoy Tadataka Ogasawara staying on Tsushima and Tongsinsa based on the historical materials of Ogasawara Clan of Kokura, Tadataka received Tongsinsa after meticulous preparatíon. Moreover, Hikotake Ishikawa, a Confucian scholar of Kokura Domain and employer exchanged poems with the Tongsinsa people. ludging from that, a group of Envoy Tadataka Ogasawara arrived after a group of Tongsinsa, and the group of Tongsinsa left Tsushima first before returning home, not to neglect reception/interchange but it was a result of their effort to faithfully perform the roles given from the Shogunate.