Japan

Japan is an island nation located off the coast of eastern Asia in the Pacific Ocean. Its capital city is Tokyo.

It is also the location of Academy City.

Background
A series of 47 man-made magical portals are located across Japan, which allow people with the right knowledge and means to travel between them.

Japan's indigenous religion is Shinto.

Lance of Gungnir Arc
Tokyo was the site of an invasion by GREMLIN, in order to hamper their enemies' attempts to stop them from completing Gungnir.