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.
Keep peace in your hearts.
حافظوا على السّلام في قلوبكم
Mantengan la paz en sus corazones.
Mantened la paz en vuestros corazones.
Continuez d’apaiser votre cœur.
Mantenete la pace nei vostri cuori.
Mantenham a paz em seus corações.
в покое и умиротворении.