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!

Haruo-san, here, you will call me "Principal."
هارو-سان، نادِني هنا بالناظرة
Haruo-san, nenn mich hier bitte
„Frau Schuldirektorin“.
Haruo, en la academia
tienes que llamarme "directora".
Haruo, en esta academia
me tienes que llamar "directora".
Haruo, je suis ta principale,
dans cet établissement.
Haruo, qui chiamami preside.
Haruo!
Харуо, здесь зови меня директором.