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...?
You couldn't differentiate between
Rome and Greece either!
Du hast sogar Rom und Griechenland
verwechselt!
¡Tampoco distinguías entre
Roma y Grecia!
¡Y tampoco sabes diferenciar
entre Grecia y Roma!
Et tu étais incapable
de différencier Rome et la Grèce !
Você, também, não sabia a diferença
entre Grécia e Roma!