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-
They were supposed to be 
turning at the proper rhythm,
،كان من المفترض أن تدور وفق الإيقاع الصحيح
Sie sollten sich in einem
vernünftigen Rhythmus bewegen,
Se suponía que debían ir al mismo ritmo,
Se suponía que debían ir al mismo ritmo,
Ils étaient censés tourner
au bon rythme,
Avrebbero dovuto ruotare al giusto ritmo
Deveriam estar girando no ritmo certo,
Они должны были крутиться 
в правильном ритме,