I'm pretty sure I first saw him in Traverse Town, in my dreams.
“He's right inside this projection, in another imagining of this world,” Joshua had said, showing me Riku in another Traverse Town. That guy was there in the image. “As for how the world got split in two… I have a feeling you'll need to ask this guy.”
Riku was facing a man in a black coat—the same coat the guys from Organization XIII wear. The hood on the coat was slowly pulled back to reveal a young man with silver hair. At the time I had never seen him before, let alone met him, but I had the feeling I knew him.
The next time we met was… right, the World That Never Was.
“Come with me.”
He had formed out of an arrow shot by Xigbar, and was holding his hand out to me. I was already in a dream, but I got sleepy… and then I woke up on Destiny Islands.
“Yes. This was where it started.”
He was right there, sitting on the beach next to me. And yet, the guy we were watching was him as well. Beside him, standing at the edge of the water, was the man in the brown robe.
“At this point, I still had no idea that I was talking to myself. He cast away his bodily form just to set me on the appointed path.”
“What do you mean?” I honestly had no clue.
“That is Xehanort reduced to just a heart——the being you and your friends called "Ansem."”
And then I fell asleep again, into a dream.
This guy is always coming and saying things to me that don’t make any sense. He puts on this know-it-all face as he talks to me. What on earth does he know?
"Name Unknown"
Young Xehanort’s Keyblade. Apparently it originally resembled No Name, but as Master Xehanort’s power increased, his Keyblade transfigured into this ominous form.