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.
D-Didn't you know that from the start?
W-War das nicht von Anfang an klar?
Lo sabías desde el principio, ¿no?
Lo sabías desde el principio, ¿no?
Ça, c’est quelque chose que
 tu savais depuis le début, non ?
Você sabia desde o começo, né?