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!

How'd I ever get stuck doing this?
كيف وقعت في معضلة فعل ذلك؟
Warum muss ich mir das antun?
¿Por qué tengo que hacerlo?
¿Por qué tengo que hacerlo?
Pourquoi c’est à moi
de m’en occuper ?
Ma perché devo fare una cosa del genere?
Por que eu tenho que
fazer uma coisa dessas?
Ну и как я на это подписался?