I don't remember anything from my past except when I became friends with Hayato and then decided to live with him. I was at the city fountain when he found me. I suspected that I had amnesia.

I would ask him sometimes the question,

"What happened when you found me?"

Then he would have a dismal look on his face and wouldn't reply so I just kept wondering what it was. I kind of remember some kind of promise, but it might be irrelevant.

"I'll tell you when the time comes." He says.