Kumiko enters Kitauji High School having been unable to forget what Reina said at a middle school concert band competition. She goes to visit the concert band at school along with classmates Hazuki and Sapphire, where they meet Reina again.
She's so nervous, she's hiding in the washroom.
اختبئتْ في دورة المياه من شدّة توتّرها
Sie hat sich vor Aufregung
im Klo eingesperrt.
Estaba tan nerviosa que 
se encerró en el baño.
Estaba tan nerviosa que 
se encerró en el baño.
Elle était si nerveuse 
qu’elle s’est enfermée aux toilettes.
era così nervosa che si è chiusa in bagno.
Ela estava tão nervosa que foi
se esconder no banheiro.