Nagoya (名古屋) is the capital and largest city of Aichi prefecture, in the Chubu region of Honshu, Japan. It is Japan's third-largest incorporated city, the fourth most populous urban area and one of the country’s leading industrial cities. It is also one of the nation's major economic centers. Nagoya now ranks as one of the nation's economic powerhouses, and is home to the head offices of Toyota Motor Corporation, Brother Industries, Daido Steel, Makita, Denso Corporation, INAX, Suzuki Motor, Honda Motor, Noritake, NGK Insulators, Olympus Optical, Yamaha and many others. Unlike other parts of Japan, which borrowed heavily for elaborate and expensive public works projects in the bubble years of the 1980's, Nagoya held to a pay-as-you-go philosophy, and has not been as adversely affected by the post-bubble recession as other major centres.

Busan is South Korea's second largest metropolis after Seoul, with a population of around 3.6 million. It is the largest port city in South Korea and the fifth largest port in the world. The city is located on the southeasternmost tip of the Korean peninsula and faces the Korea Strait. The most densely built up areas of the city are situated in a number of narrow valleys between the Nakdong River and Suyeong River, with mountains separating some of the districts. Nampodong to the south is Busan's shopping and entertainment downtown, while central Seomyeon at the intersection of subway lines 1 and 2 is the main office building area. Between them are Busan's train station and its international ferry terminals. The beaches of Gwangalli, Haeundae and Songjeong lie to the east, the ruins of mountain fortress Geumjeong guard the north. To the west is Gimhae town where the Busan Airport is located.

Tokyo - officially Tokyo Metropolis, is one of the 47 prefectures of Japan. It is located on the eastern side of the main island Honshū and includes the Izu Islands and Ogasawara Islands. It is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family. The city is famed for its vibrant food scene, and its Shibuya and Harajuku districts are the heart of its trendy teen fashion scene.

Osaka is a designated city in the Kansai region of Japan. Located at the mouth of the Yodo River on Osaka Bay, it is known for its modern architecture, rip-roaring nightlife and delectable street food. Historically a merchant city, Osaka is traditionally considered the "nation's kitchen" (天下の台所 tenka no daidokoro) or the gourmet food capital of Japan that served as a center for the rice trade during the Edo period. The city has a long history and is home to many ancient shrines and temples, and to the famous Osaka Castle, built by Toyotomi Hideyoshi in the late sixteenth century.

Hiroshima is the capital of Hiroshima Prefecture, and the largest city in the Chūgoku region of western Honshū, the largest island of Japan. It became best known as the first city in history to be destroyed by a nuclear weapon when the United States Army Air Forces (USAAF) dropped an atomic bomb on it at 8:15 A.M. on August 6, 1945, near the end of World War ll. Although many only know it for the horrific split when it became the site of the world's first atomic bomb attack, it is now a modern cosmopolitan city with excellent cuisine and a bustling nightlife.

Yokohama is the second largest city in Japan by population, and most populous municipality of Japan. It is the capital city of Kanagawa Prefecture. It lies on Tokyo Bay, south of Tokyo, in the Kantō region of the main island of Honshu. It is a major commercial hub of the Greater Tokyo Area. It’s also known for Sankei-en Garden, a botanical park containing preserved Japanese residences from different eras, and the seaside Minato Mirai district, site of the 296m Landmark Tower.   Yokohama's population of 3.7 million makes it Japan's largest city after the Special Wards of Tokyo. Yokohama developed rapidly as Japan's prominent port city following the end of Japan's relative isolation in the mid-19th century, and is today one of its major ports along with Kobe, Osaka, Nagoya, Hakata, Tokyo, and Chiba.