Written before: It is true that the content is derived from the lyrics of a song by a Taoist nun friend of mine. It can be said that the plot also follows the lyrics. However, I did not understand the background of the original characters in depth, but it is precisely because of this that it increased my imagination. It is just the story in my mind. If there is anything inappropriate, please forgive me. There is no way to know the official position. Don't believe it if the author writes it blindly.