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.
You can change teachers 
at school if you want.
Du kannst die Lehrer in der Schule wechseln, 
wenn du willst.
Puedes cambiar de profesores 
en la escuela si quieres.
Si quieres, puedes cambiar de 
profesores en la academia.
Tu peux changer 
de professeur, si tu le souhaites.
Se quiser, você pode mudar
de professor no colégio.