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 was so happy, I felt like 
I was living in a dream...
Ich war so glücklich, ich dachte,
 ich würde einen Traum leben.
Pensé que era feliz de verdad, así que...
Pensé que era feliz de verdad, así que...
tout était si parfait,
Achei que estivesse 
realmente feliz, então...