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!

We're members now?
أصبحنا أعضاءً الآن؟
Wir sind jetzt wohl im Chor.
Ya somos miembros.
Ya somos miembros.
On est membres, maintenant ?
E siamo diventati membri del club...
Vamos virar integrantes...
Мы теперь в хоре?