At last, Haruki sleeps with Kazusa.  Her wish finally comes true, and she prepares to leave for Europe. Haruki takes Setsuna to the airport, hoping that they can all be together once again.  When the three are reunited, everyone remembers the best moment of their lives: the last song they sang at the school concert.  The title of the song was...
I just wanted the three of us 
to be together forever.
Ich wollte nur, dass wir drei 
für immer zusammen sein können.
Solo quería que los tres 
estuviéramos juntos por siempre.
Solo quería que los tres 
estuviéramos juntos toda la vida.
C’est juste que je voulais 
que l’on soit tous les trois ensemble.
Só queria que nós três ficássemos
 juntos para sempre.