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.
Sis... is Papa really never coming home?
أختي... ألن يعود أبي أبدًا؟
Schwester …
Shiori, ¿mi papá no va a volver?
Shiori, ¿mi padre no va a volver?
Dis Shiori, c’est vrai
que papa ne rentrera plus ?
Sorellona...
Onee-chan, o papai não
vai mais voltar para casa?
Сестра... 
Неужели папы правда больше нет?