Cities: the Source of Evil

Since the beginning of humankind, we have had a great curiosity about the bright starry sky above our heads. Physicists still don't understand whether the universe is unique. Outside of our universe, are there parallel universes, different spaces or sub-dimensions? Be it twelve-dimensional space theory or string universe. Maybe there really is such a magical place in the dark corner that we don't know about, completely different from ours! If there are parallel universes, do the theorems of our universe still hold? Is π still 3.14159..., Does the law of universal gravitation hold? If you think about it more exaggeratedly, is there really such a space, with a completely fantasy style, where a sword splits the sky and the earth, or a magical style, where hands rub fireballs, or a supernatural style, where ghosts roam the city? Wang Yifan, who is ordinary and ordinary, said that everything can exist, as long as you are brave, even physics and chemistry are on holiday! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.