Ah, nevermind, I found the issue and will update immediately. In the meantime, you might be able to go through the exit by rubbing up against that wall if you haven't tried that already.
Viewing post in Kura5: Bonds of the Undying comments
Train's all good now, but, uh, I think I broke everything sleeping in Annie's room. I even talked to Nero and saved like the dummy I am...
(luckily I managed to bail myself out by just editing the save file to move my coordinates, but yeah whoops)