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!

Try singing "La" for a sec.
جرّب غناء "لا" قليلاً
Gib mir mal ein „Laaa“.
Prueba a cantar "La" un segundo.
Prueba a cantar "La" un segundo.
Essaie de chanter un la.
Prova un attimo a darmi un "la".
Tente me mandar um lá.
Пропой-ка мне «ла».