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!

You were lying in wait.
كنت تتربّص مُنتظراً
Waren wir verabredet?
Nos estabas esperando.
Nos estabas esperando.
Non è che ci stava aspettando?
Abandonou o ponto de encontro?
Вы нас тут ждали.