This is a customization. Because of the personal feelings of the man who made the appointment, you will see some shadows of the ballet "Swan Lake". In addition, the plot summary of the initial stage, including the name of the character, he also planned it. But you know, I always can't suppress the urge to play the plot as I wrote, so the final product became what he could not imagine at the beginning... Readers may need to read it seriously and think about it to clarify the context of the entire plot... Warning: Compared with most of my previous articles, this article may not be so fleshy, and the combination of fleshy scenes and the plot is not particularly high (it doesn't feel that it doesn't affect the plot if you delete the fleshy scenes). So if you just want to read the meaty article, you may not like it.