Domain Boundary

When one party wakes up, he finds himself on a speeding train and has already "died" once. The boy who had a mysterious dream, without any preparation, came from the real world to an alien space that resembled the earth but was full of fantasy. This is not the world he is familiar with, and there are strange forces chasing him. While he needs to survive, he needs to find his old friends, protect those around him, and explore the nature of the world, but he cannot avoid falling into the whirlpool of struggle step by step. Travel between two worlds and cross the boundaries of dimensions. "If you can't protect your small wishes, then devour this world."