The story begins with a unique elf who has an unusual life experience, so unlike other elves, he can have wings forever. The elves live in the mysterious Wucheng. The entrance to Wucheng is in the center of the forest. No one has set foot here, because everyone who mistakenly breaks into the barrier will be turned into powder in the distorted time and space. But one day, a two-year-old girl entered Wucheng alive inexplicably.
Intention: The mud under the spring is like a bone, and the world is morning and evening. The sky is light and the clouds are free, the same as in the past and present, but it is nothing more than counting the clouds and hazy clouds.