After her mother and father died, Shiori and her little brother Shu were taken in by their uncle. Soon after, Shu was hospitalized with a hereditary disease, and Shiori was sent to the school as punishment for fighting back against her uncle's abuse. Meanwhile, Hibiki has taken over leadership of class four, and Hyo appears before him, to make him an offer he cannot refuse.
You want to hear your little 
brother's voice again, don't you?
تريدين أن تسمعي صوت أخاك
الصغير مجدّدًا، أليس كذلك؟
Du willst noch mal die Stimme
deines Bruders hören, richtig?
¿No quieres escuchar
la voz de tu hermanito?
¿No quieres escuchar a tu hermanito?
Tu veux entendre
la voix de ton frère, non ?
Vuoi sentire un'altra volta
la voce del tuo fratellino, vero?
Você quer escutar a voz do
seu irmão de novo, não quer?
Ты же хочешь снова услышать 
голос брата?