The sparks will stay forever in the world, and the sunshine will never return to spring again.
The solar system was invaded by an interstellar force, and eight people in Class Three of Eight Years were trapped in a doomsday chamber.
They are in a secret room. . . . . . . . . . . . . .
If you want to know what happened to them in the secret room, please read my book carefully.
Intention: None