Shikishima Ritsu was living a fulfilling high school life.
Then one day, when Ritsu heard the new song from popular idol, μ, he noticed a cry for help hidding within the song.
Ritsu tried to confirm it with his friends, but none of them would respond to his questions, and they even acted off.
The suspicious incongruities continued piling up until the new year's entrance ceremonies. Yet the new students entering the school were-
Then, we unleash lots of 
small fish in the other side.
ثم أطلقنا عنان كثير من الأسماك الصغيرة
في الطرف الآخر
Dann werfen wir viele kleine Fische
auf die andere Seite.
Y después liberamos
muchos pececitos en el otro lado.
Y después liberamos
muchos pececitos en el otro lado.
avec plein de petits poissons
de l’autre côté,
A quel punto, riversiamo
 tanti pesci piccoli nell'altra metà.
Então colocássemos diversos
peixes pequenos do outro lado.
В другую половину поместили
много маленьких рыб.