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?
Why do I need to make him 
out to be the killer?
لِمَ عليّ أن أجعل منه قاتلاً؟
Warum muss ich ihn eigentlich
zum Mörder machen?
Pourquoi je dois le faire passer
pour le coupable ?
Che bisogno c'è di additarlo come colpevole?
Por que preciso tentar 
incriminá-lo como o assassino?