[A train to Tokyo. Well, this main is certainly Japanese then The fuck he has grey hair to is he 18 going on 60. If he's surprised by the piece of paper or not, he doesn't really show it, just frowns. The default Kei Nanjo expression, really.]

Prisons don't have to be so literal. We can't leave here for now, therefore it can be concluded that it might be one of those gilded cages. Besides...it feels a little off, truly. I've been stuck in a friend's ideal world once. However, it didn't stop demons from showing up eventually.

[That explains the sword...maybe?]