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 because he's perfect, isn't it?
لأنّه مثاليّ، أليس كذلك؟
Weil er einfach perfekt ist?
Porque es perfecto, ¿no?
Porque es perfecto, ¿no?
Parce qu’il est parfait.
Perché è perfetto in tutto, no?
Porque ele é perfeito, não é?
Ну так он же всем хорош.