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!

Truth is, I'm trying to start up 
a choir at your school. You follow?
أنا أحاول تشكيل جوقة في مدرستكم لأصارحك
Weißt du, ich soll einen Chor
bei euch gründen.
Verás, tengo que crear
un coro en la academia.
Verás, tengo que crear
un coro en la academia.
Ça tombe bien,
je dois monter un club de chorale
Il fatto è che io ci devo fondare un choir club.
Na verdade, eu tenho
que começar um coral lá!
Тут такое дело — я хором 
у вас буду руководить. Интересно?