|The Gate at Ginza|
A suddenly appearing portal to an unknown world - to the major powers it may be no more than a mere asset for toppling the international order. But to our protagonists it is an invaluable opportunity to broaden knowledge, friendship, and ultimately their perspective towards the world.
In August of 20XX, a portal to a parallel world, known as the "Gate", suddenly appeared in Ginza, Tokyo. Monsters and troops poured out of the portal, turning the shopping district into a bloody inferno.