Beneath the rainbow’s arch, the first shadows of dusk fall on the islands of Tsushima Province. Composed of the group of islands in the strait between Kyushu and the Korean Peninsula, Tsushima Province functioned as a strategic diplomatic site long before the Edo Period. During Hiroshige’s time, the islands were the center of trade and diplomacy with the Joseon Dynasty of Korea. Throughout history, the islands' close ties to both Korea and Japan have shaped a hybrid identity that continues to this day. The former Tsushima Province corresponds to Tsushima in Nagasaki Prefecture.