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 two contrasting qualities 
form a yin and yang of creation."
الصفتان المتناقضتان تشكّلان الين واليانغ
Diese beiden Kontraste bilden
ein Yin und Yang der Kochkunst.
Los dos contrastes forman
un yin y yang de la creación.
Los dos contrastes forman
un yin y yang de la creación.
C’est une réunion d’antagonistes,
tels le yin et le yang.
I due sapori contrastanti formano
 una creazione armonica fra yin e yang.
A junção dos dois sabores totalmente
distintos são como ying e yang.
Два противоположных вкуса 
слились воедино, как инь и ян.