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!

Wow! That was amazing!
Bravo! Das war klasse!
¡Eso estuvo genial!
¡Guau! ¡Qué pasada!
Ого! Вот это да!