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!

Now there's just one thing to do...
...تبقّى لي أمرٌ واحد فحسب لفعله
Dann gäbe es noch
eine weitere Vorgabe.
Tu n’as qu’un objectif à atteindre.
A questo punto, ho solo un'ultima richiesta.
А теперь самое главное...