Where is Japan?

Japan map

Source: Google map

Source: Google map

Japan is located in Asia.
Major cities are Tokyo, Yokohama, Osaka, Sendai, Sapporo, Nagoya, Hiroshima, Fukuoka etc.
Currency is YEN.
Language is Japanese (Kanji, Hiragana, Katakana). English is seldom used.
Voltage is 100V (but the frequency of electric current is differ 50Hz - Kanto, Tohoku, Hokkaido area and 60hz - Kansai, Kyushu etc )

Regions of Japan
Hokkaido: Hokaido
Tohoku : Akita, Iwate, Miyagi etc
Kanto : Tokyo, Saitama, Chiba, Ibaraki, Kanagawa etc
Chubu : Nagano, Niigata, Toyama, Yamanashi etc
Kansai : Osaka, Kyoto, Hyogo, Nara etc
Chugoku : Hiroshima, Yamaguchi etc
Shikoku : Tokushima, Kagawa etc
Kyushu : Fukuoka, Oita, Miyazaki etc