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!

This morning, there was a report
 of someone approaching students.
صباح اليوم، ورد تقرير
باقتراب شخص من التلامذة
Heute früh wurde am Schultor
ein Fremder gesichtet.
Hay un desconocido
acercándose a los estudiantes.
Hay un desconocido
acercándose a los estudiantes.
Une personne suspecte
a été aperçue ce matin.
Stamani un molestatore si aggirava
nei pressi del cancello della scuola.
Hoje cedo, um homem suspeito
abordou alguns alunos.
Этим утром к ученикам 
подходил подозрительный человек.