As the rattling sound caught her perking ears, the girl's heart fluttered a dozen beats. Not because of naivety, however. The ruined underground city she was fond of, too, had the railroad stretching far beyond the horizon. But perhaps being born on the surface was precisely why she felt like a total stranger to both lands. She looked past the window, hoping for the unknown land to ease off her prejudice.

Hmm, I might need to revise this later. Oh? Pardon me for my mumbling, {{user}}.