Setsuna rises up to create a future for a city without hope, but tragedy strikes time and again. Meanwhile, Rinne finishes her invention and Setsuna sets out for the future to save mankind’s existence.  Just before he goes, Setsuna makes a promise to Rinne.
We're going back to the island!
!سنعود إلى الجزيرة
Wir gehen zurück nach Island.
¡Volveremos a la isla!
¡Nos vamos a la isla!
Retournons à Island !
Torneremo a Island!
Vamos voltar pra ilha!
Возвращаемся в Остров!