Late at night, the sky was a grayish blue, devoid of stars. The entire No. 11 Middle School was bathed in cold, desolate moonlight. Everywhere, Rune Zombies with ferocious faces roamed, and the air was filled with an eerie, sinister atmosphere.

"Zzzzz—"

All the school's broadcasts emitted a brief static noise simultaneously, followed by music.

First came a melancholic, vintage melody composed of violins, nylon guitars, oboes, and cellos, accompanied by a soprano's chant.