Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of China, Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea in the south. The characters that make up Japan's name mean sun-origin, which is why Japan is sometimes identified as the Land of the Rising Sun.
Japan comprises over 3,000 islands, the largest of which are Honshu, Hokkaido, Kyushu and Shikoku, together accounting for 97% of its land area. Most of the islands are mountainous, many volcanic for example, Japan's highest peak, Mount Fuji, is a volcano. Japan has the world's tenth largest population, with about 128 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.
In Japan, a junior idol (ジュニアアイドル junia aidoru), alternatively chidol (チャイドル chaidoru) or low teen (ローティーン rōtīn), is primarily defined as a child or early teenager pursuing a career as a photographic model (this includes both gravure and AV).
\ Child actors, and J-pop singers (whose musical genre is often termed idol pop) can also be considered junior idols, and are often featured in photobooks and image DVDs.
\ Female fashion models (not to be confused with glamour models including gravure idols) also begin their careers typically at age 13 - 15, but are usually not considered junior idols. Child models, whose careers are usually over by their early teenage years, are also not usually considered junior idols.