Ren is haunted by the deaths of his party members in a failed attempt to defeat the Spirit Tortoise, and doesn't want to believe that he might be responsible for what happened.  Myne seems ready to take his side and support him, but...
I believe you fought for 
the sake of the world!
!أؤمن بأنّك قاتلت لأجل العالم
Und daran, dass du für
die Welt gekämpft hast.
Vous vous êtes battu
pour sauver ce monde.
Sarò convinta che combattiate
 per il bene del mondo.
Que você lutou pelo bem deste mundo!
Я буду кричать,
что вы бились во благо мира!