In this future era, a dream brings an unprecedented apocalyptic crisis. Just as everyone thinks it's only a minor problem, tragedy slowly erupts in the darkness.
This "gentle" apocalypse sweeps across the globe. Even the great nations, working together, can't think of a way to fight it. Just when everyone is at a loss for what to do,
a young man steps forward. He's a student. He will be afraid, he will tremble, but even so, he'll still go out and save others.
Many years later, things haven't changed much. The survivors have gathered on an island, relying on special devices to guard humanity's last hope.
