The title of the article is taken from "The Shadow of the Wutong" written by Lu Yan of the Tang Dynasty.
Original word: The bright moon is slanting, and the autumn wind is cold. Will my old friend come tonight? Teach people to set up all the shadows of the sycamore trees.
I solemnly say: At some point, Wenwen was sent to you. This is also the first written gift for you in six years. (You have been turned into a Jiao fan and a Narcissus fan by me, so I will give you this pair of new CPs...)