The monotonous sound of the train riding on the track continued rhythmically for a very long time. As it was traveling through a tunnel, the only rapidly changing scene outside the window was a patch of darkness. There weren't any other posthumans, from other worlds, in the quiet and empty train carriages. Lin Sanjiu sat on the train for a long time before she could react to this situation.
[Isn't this an apocalyptic world?]
Although, she didn't see any survivors around, what could explain the working lights, escalator, and high-speed train?
[Besides, where is this train heading?] She stood up and walked around, feeling a little anxious. Even though she had already walked through the entire train once and checked every corner—even under the seats—Lin Sanjiu couldn't help feeling a sense of constant panic when she sat down silently in a seat.