Ransei (Japanese: ランセ地方Ranse-chihō) is the name of the region that appears in the game Pokémon Conquest. It is said to be similar to feudal Japan. The region is divided into 17 kingdoms, each with its own castle.
The region of Ransei is said to have been created by a Mythical Pokémon, Arceus, which the shape of the region itself resembles. Legend says that conquering all 17 kingdoms will bring forth the return of Arceus.
Aurora (Japanese: ハジメの国Hajime Nation) is where the game's initial story, The Legend of Ransei, begins. It is located in the middle of the southern part of the southwestern peninsula of Ransei. It is home to many Normal-type Pokémon.
Greenleaf (Japanese: アオバの国Aoba Nation) is located on the southwestern-most coast of the Ransei region. It is surrounded by lush plains, and the castle sits inside a dome-like a massive greenhouse. It is home to many Grass-type Pokémon.
Fontaine (Japanese: イズミの国Izumi Nation) is located on the eastern side of the southwestern peninsula of Ransei. It is a land full of rivers, streams, and waterfalls. It is home to many Water-type Pokémon.
Pugilis (Japanese: コブシの国Kobushi Nation) is located on a flat plain in the western half of the central part of Ransei. Its castle resembles a stadium or colosseum. It is home to many Fighting-type Pokémon.
Spectra (Japanese: ミタマの国Mitama Nation) is located on the northeastern-most coast of Ransei. Its castle is dimly-lit and surrounded by spooky floating lights and flames. It is home to many Ghost-type Pokémon.
Dragnor (Japanese: リュウの国Ryū Nation) is located amongst the tall mountains in the middle of Ransei's northeastern peninsula. It is home to many Dragon-type Pokémon. The Infinite Tower is located in Dragnor.
Ransei is the only region in which humans are known to "transform" to become more powerful in a manner similar to the evolution of their Pokémon partners.