Tenshi, Ei-chan, and Shiratori all attend Kawagoe Academy. One day, they get pulled into the orbit of former conductor Haruo. He drags them into his newly founded boys choir where they suddenly find themselves performing a song in front of an audience!

For running from the music, 
I sentence you to ten thousand deaths!
!سأحكم غليك بعشر آلاف ميتة لهروبك من الموسيقى
Es ist eine Todsünde,
vor der Musik zu fliehen!
¡Por huir de la música,
te condeno a diez mil muertes!
¡Por huir de la música,
te condeno a diez mil muertes!
Tu seras puni
pour avoir fui la musique.
Per essere scappato dalla musica
meriti la pena di morte!
Fugir da música é pior do que a morte!
Приговариваю к десяти тысячам 
смертей за побег от музыки!