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?
I need to be able to test my mind control 
like that, or it's no fun, right?
عليّ أن أكون قادراً على اختبار تحكُّمي بالعقول‏
بهذا الشّكل وإلّا فلن يكون ذلك مسلّياً، صحيح؟
Wäre doch öde gewesen, dabei meine
Gedankenkontrolle nicht auszuprobieren.
Tenía que probar los pensamientos
guiados o no sería divertido.
Si no probaba los pensamientos guiados,
no sería divertido.
Il fallait bien que je m’amuse à tester
mon contrôle mental sur toi.
Se non avessi provato un po' il condizionamento
mentale, non sarebbe stato interessante.
Eu tinha que testar meu controle mental 
daquele jeito ou então não teria graça, não é?