It's hard to explain, but I picked it up on the way back. Apparently the world we're on is called "Earth," and it's quite large. Bigger than anywhere we've been to. [Riku has to rely on his observation skills to come to these conclusions. He knows better than to ask questions. "Where am I?" won't work out if he's supposed to know where he is, for instance.

He caught on pretty fast that thanks to their weird blue shirts, they were meant to fit in.]

Only there are a lot of other worlds nearby. [He does a small motion with his hand, indicating that they were within the same ... arena. Connected in some way. (He'd say it's all the same sky, but he's baffled by what this means in accordance to that notion.)]

And this city is just one of many. I've never seen worlds this large before.

[Not even thanks to Nomura going all in in the most recent installment.]