Shrunken version: A certain future man beats little monsters with a group of sand sculpture players in an interlaced time...Traditional introduction: Someone who is playing an ancient game suddenly finds that the accelerator key is gone. Slowly discovers the sand sculpture around him There is a problem, only to realize that the game has undergone unknown changes in time and space. At the same time, the world where another time and space player is in is being invaded by unknown creatures from other worlds. Maybe the information in the game can be used as a reference?