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-
You're getting into complicated things again.
أنت تتطرق إلى تفاصيل معقّدة من جديد
Du redest wieder komplizierte Dinge.
Otra vez hablando enredado.
Vuelves a hablar de cosas complicadas.
Ça m’a l’air compliqué, tout ça.
Ti stai cacciando di nuovo
 in discorsi complicati.
Você está dizendo coisas difíceis de novo.
Опять ты копаешься в сложностях.