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...
If we leave now, we can 
make it in plenty of time.
Wenn wir jetzt gehen, haben 
wir noch genügend Zeit.
Si salimos ahora podemos 
llegar con tiempo de sobra.
Si salimos ahora, podemos 
llegar con tiempo de sobra.
On peut arriver à temps, 
en partant maintenant.
Se formos agora, chegamos com
tempo de sobra no aeroporto.