Just to be cruel, I'm not going to reveal who Tifa was talking to in the last chapter... not yet anyway!
Disclaimer: SquareEnix own the recognisable bits.
Tifa.
Transparent: so sheer as to permit light to pass through; diaphanous; open; frank; candid.
It had taken her a while to figure out why he was nearly transparent.
"You've forgotten who you are, haven't you?"
She could see it in his face, that hopeless look of despair.
"Why are you still here?"
He'd looked at her then, confusion on his face.
"There's someone waiting for me. I made a promise to return."
She didn't ask him if he could remember who was waiting for him.
Instead she smiled and gestured towards him.
"With that hair you look like my friend Cloud."
He flickered then, becoming more real, more whole.
"…Cloud?"
This man had known Cloud?
"Cloud… chocobo…"
She smiled.
"Yep that's Cloud alright."
The man stirred and she could see life returning to his face.
"Cloud… my friend… SOLDIER…"
That was how he'd known Cloud then, through SOLDIER.
"I… don't remember…"
She laid a reassuring hand on his shoulder, and didn't pull back, even when her fingers moved through him.
"You will one day. After all, someone's waiting for you."