13화: 하루키와 카즈사가 유럽행 떠나기 전 마지막 밤을 함께 보낸다
2013년 12월 29일 방영
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... (Source: Crunchyroll)