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The Kingdom of Aldegia (アルディギア王国 Arudigia ōkoku) or Aldegyr Kingdom is a small Northern European nation on the coast of the Baltic Sea. It is a constitutional monarchy ruled by Lucas Rihavein. Known for its beautiful natural environment and high-tech industrial power, it was especially famous for production of magical products. The royal family's girls—with few exceptions—are powerful spirit mediums, and many high-level spells are passed down through the family. Since it borders the Warlord's Empire, the Aldegian Army has a wealth of experience combating demons.