Find Memories Please

My name is Kao? That...sounds very unfamiliar to me. And I've been here for a while? So everyone here should know me? Well, why won't anyone tell me anything then?

I feel uneasy...like I'm the only one in the world. I want to rediscover my memories. I want to know my past. Please help me find myself.

Another keeper stopped by while you were gathering info. She told me that she was selling memories. She told me to come by whenever I needed them, so could you talk to her for me? Her name is Johanna.

I don't know when my memories will return. What should I do if no one helps me?

You think I'll get all my memories back if I drink this potion?

(Gulp gulp)... Ah! I... I remember everything!

How exactly does one sell memories...?