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 Flower Festival that 
draws huge crowds every year
مهرجان الزهور الذي يجذب جماهير
غفيرة كل عام
El festival floral
que atrae mucha gente cada año
El festival floral
que atrae mucha gente cada año
le festival floral
se tiendra au parc Shikei.
Il Festival del Fiore che ogni anno
 attira migliaia di persone
O Festival das Flores que
atrai multidões todos os anos
Популярный ежегодный Фестиваль цветов