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.
Looking at a real blue sky 
is totally different.
النظر إلى سماء زرقاء حقيقيّة أمر مختلف تماماً
Der echte Himmel
ist was ganz Anderes …
El verdadero cielo azul es diferente.
El verdadero cielo azul es diferente.
Le vrai ciel a vraiment rien à voir.
Ammirare il vero cielo azzurro è tutt'altra cosa.
Ver o céu azul de verdade
é totalmente diferente.
Настоящее небо совсем другое.