The gang heads off to space to fight in what they believe to be the final battle. Meanwhile, Kokoro and Mitsuru stay behind to fight a battle of their own.
We'll always be together.
لطالما كنّا معاً
Wir wollten für immer zusammen bleiben.
qu’on ne ferait qu’un
Dovevamo stare insieme per sempre.
Sempre estaremos juntos.
Мы дали друг другу слово, 
что всегда будем вместе.