School Festival - Ariel Academy-s Secret

No loudspeaker. No DJ. The festival begins when the eldest senior lights a single match and whispers, “We are not students tonight.” The crowd repeats it. The match is dropped into a small iron cauldron. The fire turns blue. The music begins—usually a live DJ set powered by car batteries.

: Is this from a specific book, anime, or a real-life school? Ariel Academy-s Secret School Festival

"Where shadows dance, and lights entwine, Seek the first clue, in the heart of the brine." No loudspeaker