kinaku:

And here Toguro sees her, lifts his glasses to better cover his eyes, her image disappearing from our view. The symbol of who he had become, the glasses he only began wearing when he became a demon and later takes off in this scene, being replaced on his face, like the mask he wore to cover up what was truly inside… a tender heart. Because he thinks he has to be strong now. That he has to be the monster still so that he can leave Genkai without her mourning him. 

But she doesn’t buy it. She knows what’s underneath the mask. That’s why he takes it off in the end. He knows lying won’t bring her peace. Only the truth… that he was still in there, but that it was time for him to go, regardless of what he deserved or what either of them wanted. His story was over. Don’t mourn me, Genkai.