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-
the northern pike won't attack 
the small fish anymore.
سمكة الكراكي الشمالية لن تهاجم
السمك الصغير
auch wenn man die Glaswand entfernt.
el lucio no volverá
a atacar a los pececitos.
el lucio no volverá
a atacar a los pececitos.
il luccio non attaccherà più
 i pesci piccoli.
o peixe Lúcio não irá
atacar os peixes pequenos.
щука уже не попытается 
атаковать маленьких рыб.