Japan has long since fallen, and its memory has faded in the minds of the people. Now that the magitech utopia that has been built up in its place is being threatened by an imperialist power, what can two girls do? With an arsenal of magitech gear and a lifetime of doing extreme combat sports, probably quite a bit.

Izumi and Chizuru won't be roughing it alone though. Homes are being invaded every day, but the invasion is only serving to strengthen community bonds as the people of this new japan lean on each other and each others' prodigious magitech and sorcery skills to repel the invading force.

Even so, the invaders are overwhelming beyond measure, so the question lingers: Will it be enough? What hidden old-word technologies are the invaders keeping up their sleeves?