Kazusa's overworking finally catches up to her, and she collapses two days before the school fair.  Haruki cares for her as he continues to practice his guitar.  Kazusa, in a (possibly) fevered state, tells him about her troubled relationship with her mother Youko.  But meanwhile, at the concert rehearsal in the gym, Setsuna is separated from the other two and feels lonely and afraid her first time on stage.
Since I collapsed, we've only 
got 24 hours to practice it.
Da ich zusammengebrochen bin,
 haben wir nur 24 Stunden zum Üben.
Como me enfermé, solo tenemos 
24 horas para practicarla.
He estado enferma, así que solo 
tenemos veinticuatro horas de práctica.
À cause de moi, on n’a plus 
qu’une journée pour le répéter.
Como eu fiquei doente, só
temos 24 horas para ensaiar.