God said let there be light, but gave only half

In 2200, there are supernatural powers in the world, but they also tolerate ordinary things.The earth is divided by a wall, one side is always night, and the other side is always day.Xie Qianshan, who escaped from the dark world, finally saw the first ray of sunshine in his life.Cai Qingyun: "I can't touch the light, so why are you staring at me? It's better to look at me." Xie Qianshan: "You are also the light." Cai Qingyun: "What light?" Xie Qianshan: "My white moonlight."