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!

Your voice is still airy and high-pitched.
لا يزال صوتك مسطّحاً وعالي الطبقة
Da klingst du noch hell.
-Tienes la voz ligera y aguda…
-Disculpe…
-Tienes la voz ligera y aguda…
-Disculpe…
– Ta voix est plate et trop haute.
– Excusez-moi…
Eri ancora un po' tremulo.
Il tono è alto.
Ainda não tem muita modulação.
Голос всё ещё высокий и лёгкий.