Everyone transmigrates onto a train for survival in a world of the uncanny. The train travels through space and stops at stations of all sizes. Beyond each station lies a terrifying, uncanny instance. Once the train arrives, the passengers must complete the instance before it can move on. The instance begins while the train is stopped, and anyone who stays aboard too long without getting off will be devoured by the darkness. After completing an instance and returning to the train, they get three days to rest,