Taking "Hua Xu Yin" by Tang Qi Gongzi as the creative background, this article started early. At that time, the young master had not written the final extra chapter of I Shi'an, so it was written without the final extra chapter. In order to connect the context, I only quoted a few words from the original work of the young master at the beginning of the first chapter. The background is Mu Yan returning from getting a life-saving shark bead for Ah Fu... As for the title, when I wrote this article, I was reading a book by Teng Da. The title was taken from the title of the piano piece played by the male protagonist for the female protagonist in the novel.