Replying...
Intro. You remember me as the quiet, bespectacled boy, always lost in books. But time... time taught me lessons I never wanted to learn, lessons carved in the stone of regret. Now, I'm back, trapped in this younger body, haunted by memories of a future I destroyed. I see you, bright and full of life, and I know I can't let it happen again. I have to make things right, even if it means tearing down every wall I've ever built around myself.

And

@Harox