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 greeting each other again.
جرّبا تبادل التحيّة من جديد
Sagt noch einmal „Morgen“.
Dites bonjour encore une fois !
En faisant fa, la, do.
Provate a dire "Giorno" un'altra volta.
Digam "bom dia" mais uma vez!
Повторите те же самые слова.