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...
Why do you want to get stronger?
لماذا تريد أن تصبح أقوى؟
Wofür willst du stark sein?
Pourquoi cherches-tu la puissance ?
Perché vuoi diventare più forte?
Por que quer ficar mais forte?
Почему ты так хочешь стать сильнее?!