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-
Miyabi Municipal Kishimai 
High School Entrance Ceremony
مراسم تخرّج من مدرسة 
ميابي المحليّة الثانويّة
Ceremonia de inauguración de preparatoria
Ceremonia de inauguración de instituto
je faisais mine de ne rien voir,
Cerimonia di apertura della Scuola
 Superiore Kishimai del Municipio di Miyabi
Colégio Kishima do Município de Miyabi
Cerimônia de Início de Ano
Церемония выпуска муниципальной 
старшей школы Мияби Кисимаи