Vexille

By the 2060s, robotics technology has advanced to the point that cybernetics have become plausible. World opinion begins to turn against robotics, leading to the U.N. declaring a unilateral ban on further research and development in 2067. Japan, being home to robotics pioneer Daiwa Heavy Industries, strongly protests this ban, but is unable to prevent its passage.

In protest, Japan withdraws from international politics. All foreigners are deported, and further immigration is prohibited. In addition, the R.A.C.E. network is constructed - a series of 270 off-shore installations that cover Japan with an energy field that distorts the entire electromagnetic spectrum, nullifying all communication between Japan and the outside world and making even satellite surveillance impossible. Trade continues, but for all intents and purposes, Japan vanishes from the world scene.

2077: A series of bizarre incidents lead the American technology police agency "SWORD" to believe that Japan has used the R.A.C.E network to conceal extensive development of banned technologies. They thus embark on an unapproved scheme to infiltrate Japan and determine the distortion frequency of the R.A.C.E. network, enabling SWORD to gather intelligence on the country . Among those chosen to make the attempt is a veteran agent named Vexille.