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-
I want you to play your harmony for me.
.أريدك أن تعزف نغمك لي
quiero que toques tu armonía para mí.
quiero que toques tu armonía para mí.
voglio che suoni i tuoi accordi per me.
quero que toque sua harmonia.
то я хочу, чтобы ты сыграл 
для меня свою гармонию.