Moriki Naoya is a thoughtful, frail child who can’t bring himself to leave his neglectful family behind. One summer during his last year of high school, he meets Takahashi, a boy whose injury has cost him the ability to pursue his dream of being a baseball player, and Noriko, a fiercely independent, perpetually upbeat tomboy with a devil-may-care attitude. As the season moves on, Naoya must either move with it or let the world pass him by…

Armageddon. The powerful weapon “Messiah” has ended the long war, leaving behind a barren wasteland. A boy wanders west, seeking the paradise that lies at the edge of the world. The man who created the weapon runs from those who would use him. Scattered by the winds of destruction, they meet, part ways, and then meet once again.