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!

You sing because you love it, right?
أنت تغنّي لأنّك تحبّ الغناء، صحيح؟
Du singst, weil du
eben gerne singst.
Cantas porque te encanta, ¿verdad?
Cantas porque te encanta, ¿verdad?
Tu chantes
parce que tu aimes chanter.
Perché tu canti perché ti piace cantare.
Você canta porque gosta de cantar.
Ты же поёшь потому, что любишь петь, нет?