Ren's vowed to bring out Ryoma's potential, but is once again pushed back by an enemy stronger than Sakura—Dark Usurper Zeus. 
With even Kamui and Napoleon struggling, Ren remembers words Akira has spoken in the past. 
And then...?
Not many make me serious. You've
got potential. Keep at it.
Junge, du hast Potenzial.
Ich rate dir, trainiere weiter.
No muchos me toman en serio.
Tienes potencial. Sigue así.
Tienes potencial, chico. Sigue así.
Ils sont peu à m’obliger à me concentrer.
Tu as du potentiel. Continue comme ça.
Não são muitos que me deixam sério.
Você tem potencial. Continue.