Japan ⁱ/dʒəˈpæn/ (Japanese: 日本 Nihon or Nippon; formally 日本国  Nippon-koku or Nihon-koku, literally the State of Japan) is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south. The characters that make up Japan's name mean "sun-origin", which is why Japan is sometimes referred to as the "Land of the Rising Sun".

Japan is an archipelago of 6,852 islands. The four largest islands are Honshū, Hokkaidō, Kyūshū and Shikoku, together accounting for ninety-seven percent of Japan's land area. Japan has the world's tenth-largest population, with over 127 million people. The Greater Tokyo Area, which includes the de facto capital city of Tokyo and several surrounding prefectures, is the largest metropolitan area in the world, with over 30 million residents.

Archaeological research indicates that people lived in Japan as early as the Upper Paleolithic period. The first written mention of Japan is in Chinese history texts from the 1st century AD. Influence from other nations followed by long periods of isolation has characterized Japan's history. In the late 19th and early 20th centuries, victory in the First Sino-Japanese War, the Russo-Japanese War and World War I allowed Japan to expand its empire during a period of increasing militarism. The Second Sino-Japanese War of 1937 expanded into part of World War II in 1941, which came to an end in 1945 following the atomic bombings of Hiroshima and Nagasaki. Since adopting its revised constitution in 1947, Japan has maintained a unitary constitutional monarchy with an emperor and an elected parliament called the Diet.

Coordinates: 35°43′48″N 139°42′40″E / 35.73°N 139.71111°E / 35.73; 139.71111 Ikebukuro (池袋^?) is a commercial and entertainment district in Toshima, Tokyo, Japan. Toshima ward offices, Ikebukuro station, and several shops, restaurants, and enormous department stores are located within city limits.

At the center of Ikebukuro is the train and subway station, a huge urban gathering shared by the JR East lines, the Seibu Ikebukuro Line and the Tōbu Tōjō Line. It is one of the main commuter hubs in the western Yamanote area of Tokyo. Ikebukuro Station is the second busiest station in Japan, second only to Shinjuku Station.

Around the station are the Seibu and Tōbu department stores. Seibu, written with the characters for "West" and "Musashi (province)" 西武, is on the east end of the station and Tōbu, written with the characters for "East" and "Musashi" 東武, is on the west end. East of the station, on the site of Sugamo Prison, stands Sunshine 60, which was Tokyo's tallest building at the time of its construction. Adjacent to Sunshine City, on Meiji-Dori is the Toyota Amlux Building which houses the Toyota showroom. Otome Road, a leading shopping area for otaku products aimed at women, is located nearby. Marui and Don Quijote also have department stores in the area. The principal electronics retailer in Ikebukuro is Bic Camera. There is a small pleasure district located in Nishi-Ikebukuro, similar to Shinjuku's Kabukichō.