What is the arbitrary door in my eyes? It's just one of the treasures in Doraemon's treasure chest. It can quickly move people to where they want to go, and of course it can also enable people to teleport. But in my novel: the arbitrary door has truly become a tool, a tool that can be seen everywhere. This also satisfies people's greatest imagination and curiosity about exploring the world. Yes, any door will bring people into a mirror world. However, fear, corruption, and the rotten stench swarming in from all directions are invading every inch of the mirror world, and there is no room for any light.
Intention: In the game between human nature and technology, who wins and who loses?