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?
Even so, you can't forgive me.
ومع ذلك، لا يمكنك مُسامحتي
Aun así, no debes perdonarme.
Aun así, no debes perdonarme.
Tu sais, c’est pas une raison
pour me pardonner.
Mesmo assim, você 
não pode me perdoar.