The final battle takes place in the Hikariwo theater, where Takuru is trapped in a sightless and soundless prison in his own mind.  He'll need Onoe's help to break free, but after what he knows about her, can he bring himself to ask for it?
Our rule was that you don't get to 
interfere in the experiments I do on him.
كانت قاعدتنا هي ألّا تتدخّلي في التجارب
التي أطبّقها عليه
Schließlich haben wir abgemacht,
Prometiste no entrometerte
en mis experimentos.
Prometiste no entrometerte
en mis experimentos.
On est d’accord que tu ne diras rien
si je tente mon expérience sur lui ?
Siamo d'accordo che non ti impiccerai
nell'esperimento che condurrò su di lui.
Nosso trato era que você não iria 
interferir nos meus experimentos.