Xiao Cheng is very good at calligraphy, and Li Yong also wrote something himself saying that he is good at identifying calligraphy. Both of them live in Nanzhong. Xiao Cheng wrote the secondary calligraphy and thought it was good, so he showed it to Li Yong. Li Yong thought it was average. Xiao Cheng was very dissatisfied with Li Yong's picky approach, so he made several fake ancient calligraphy and paintings and played with them every day, making the calligraphy and painting look messy. It was very old. Everyone who saw it said it was a calligraphy and painting from hundreds of years ago. Xiao Cheng said to Li Yong: "I have Wang Xizhi's original calligraphy. I have kept it for a long time. Now I want to show it to you." Li Yong wanted to see it. Xiao Cheng deliberately delayed it for several days and refused to take it out. Later, when the two of them talked about it, Li Yong insisted on asking to see it and said, "You agreed but didn't let me see it. Aren't you lying to me?" Xiao Cheng then asked his servant to go back and get it, but the servant didn't get it. He exclaimed: "A guest came here a few days ago and I saw it. He probably stole it." Li Yong believed it to be true. After a long time, Xiao Cheng said: "I put it somewhere and then forgot it." He asked Li Yong to follow him. After arriving at the place, Li Yong looked at it for a long time and did not suspect it was a fake. He said, "I have never seen such an authentic work in my life." Everyone here thought it was an authentic work. A few days later, when all of Li Yong's guests were gathering, Xiao Cheng said to Li Yong: "You have never looked down on my calligraphy. I showed you some calligraphy I wrote when I was a child a few days ago. Why did you just call me calligraphy?" You think it is Wang Xizhi's original work. What do you think?" Li Yong was shocked and said, "Bring it to me to see again." After seeing it, he glanced at it for a while, then threw it on the couch and said, "Look carefully now. Look, it’s still not that good."