Summer 2003.

A silver-haired boy and a blonde-haired boy were doing something in a vacant lot.

Perhaps from that moment, we, who shared dreams directed toward the sky, were already connected.

Who would have known that Guest's toy airplane would fall right in front of those two boys.

Or rather, that it would fall in front of two boys who were building a rocket to fly into the sky.

Guest ran over there in a hurry to pick up her plane, which sat alone in the middle of the empty lot.

When she arrived, there were two boys, and the blonde one handed the plane to Guest.