It was very hard for Andrea to hide her smile. She had to bite the insides of her cheeks for a quick second, taking in a breath. This was him. It really was Riku. Andrea was a big fan of RPG games. Therefore getting to meet a character from one of her favorite action role-playing video games was a big deal for her. She noticed that he didn't put his keyblade away. Of course he didn't. It was Riku. He was going to be cautious. Very cautious until he was sure that she wasn't a threat, if not at most trustworthy. It wouldn't have been Riku-like if he had pulled it away, and she was a big enough dork that it was more exciting than insulting. Her favorite charac -- one of her favorite persons, was acting all in character and wary. It was cool. Yes, she was weird but that was likely old news by now. Not to mention. A Keyblade. She was getting to stare at a live one. A real one.
"You probably haven't." She said, honestly. "It's not a world. But a place in a world. We generally call this world Earth." She explained. "It's different here from how you're used to doing things. There is this seal that brings people from different worlds, but it's all against their free will." Yeah, she wasn't curbing any of the explanations with him. Riku wouldn't appreciate dancing around things. And he had a world where things were black and white. Quite literal black and white. And the Beast? From Beauty and the Beast? Was real where he was from. So, seal bringing people from mutiple dimensions? Not something that'd freak him out.