Setsuna realizes that Haruki has been staying at Kazusa's house this whole time, and she reveals her true self to him: cowardly, introverted, and pathetic.  But Haruki accepts her as she is.  The boundary between them is broken, and the bonds between the three grow stronger as the school fair draws near.  But Kazusa is skipping sleep and food to work on her "last trick" before the school concert.
I've got other things to worry 
about besides him right now.
Ich habe andere Dinge außer ihn,
über die ich mir Gedanken machen sollte.
Tengo otras cosas de qué 
preocuparme ahora, aparte de él.
Ahora tengo otras cosas 
de las que preocuparme.
Je n’ai vraiment pas le temps
 de m’occuper de lui !
Tenho mais com o que me
preocupar agora, além dele.