A certain town in the suburbs.

This was not an ordinary countryside town that you could find anywhere. The residents were experiencing a strange phenomenon. But even so, Shizuru Chikura held a strong desire. She wanted to see her missing friends again!

Shizuru and her friends venture out into the world outside, taking an abandoned and motionless train, not knowing if they will make it back alive. What awaits them at the last stop of this running doomsday train?