A huge, 2 kilometer cube appears in the middle of Haneda airport. A passenger plane is absorbed inside it, and no one knows if the passengers are dead or alive. The Japanese government convenes an emergency meeting to deal with this unexpected event.

Shindo Kojiro has been absorbed into the giant cube known as Kado where he meets Yaha-Kui ZaShunina. Who is this being, and what are his plans for humanity? Shindo agrees to become his representative as negotiations begin with the Japanese government.

In a meeting with the Japanese government Yaha-Kui ZaShunina states that his goal is humanity's advancement. To this end, he offers them the Wam, a simple device capable of generating limitless energy from other dimensions.

The UN Security Council is greatly concerned by the Japanese government's possession of the Wam. They demand that it be turned over to them, and promise that noncomplainance will be met with potential military action.

The world's governments demand that the Wam be handed over immediately. An American carrier strike force has left Yokosuka port. Economic sanctions are in place. The Japanese government must either hand over the Wam or be ready to fight the entire world.

The last of the passengers are leaving the inside of the giant Kado cube, and it's time for the next step: moving the cube itself to a new location away from Haneda airport. Shindo takes the lead in organizing the project.