Kaisenmai

Kaisenmai (海山米, "Kaijo-Rakuzan-Beika") is a Teikonian metropolitan region encompassing the metropolitan areas of Kaijo Metropolis, Greater Rakuzan Area and Metropolitan Beika. It also includes smaller cities such as the capital of Teiko, Tetsuya and Aokise as well as several towns and municipalities under Johto Prefecture, Kamizaki Prefecture and Kyosen Prefecture. The entire region has a population (as of 2010) of 16,624,594 which is roughly 82.4% of the Teikonian population over an area of 5,728.5 km². It is Teiko's largest and most important urban agglomeration being the financial, cultural, educational, political, economic center of the country. Kaisenmai as a collective unit is of the largest urban agglomeration among AIN members and the world.

The GDP in this area (Osaka and Kobe) is $685 billion, making it one of the world's most productive regions, a match with Paris and London and even greater than that of Kyoto-Osaka-Kobe. MasterCard Worldwide reported that Kaijo is the 19th ranking city of the world's leading global cities and has an instrumental role in driving the global economy. Kaisenmai is a major financial and trade hub in East Asia along with Osaka, Tokyo and Seoul. Arashi and Kanji forecasts that the region will reach a trillion dollar GDP by 2050 assuming that the current GDP growth of Teiko remains stable.

The name Kaisenmai is constructed by extracting a representative kanji from Kaijo (海常), Rakuzan (洛山), and Beika (花米), but using the On-yomi (Chinese reading) instead of the corresponding Kun-yomi (Japanese reading) for character taken from Kaijo, and the go-on Chinese reading for each of the characters for Kyoto and Rakuzan. Tetsuya and Aokise while both part of the Kaisenmai are not included in the etymology.