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!

It's a first for me, too!
!هذه أوّل مرّة لي أيضاً
Ich auch nicht.
Yo también soy nuevo en esto.
Yo también soy nuevo en esto.
Moi non plus.
Anche per me è una novità.
Eu também!
Для меня всё тоже в новинку!