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!

but I think I'll pass on music.
لكنّي أعتقد أنّي سأمتنع عن الموسيقى
No pienso hacer música.
No pienso hacer música.
ma dal canto mi astengo.
mas me recuso a cantar.
заниматься как-то неохота.