With the department store event coming up, Yaya seems somehow depressed. It seems to have something to do with her band's audition. Yaya is reluctant to talk about it, and when Naru and the gang try to help her out, she accidentally explodes at them.
And the magic key 
to open my timid heart
Und den magischen Schlüssel,
der mein schüchternes Herz öffnet.
La llave mágica que abra mi tímido corazón
la llave mágica que abra 
mi tímido corazón.
E a chave mágica para abrir
o meu tímido coração.