Wang Xizhi, a calligrapher in Jin Dynasty, once wrote a fan for an old woman who sold it, and was heavily auctioned. Later generations used it to describe the high attainments of calligraphy and painting, which came from Wang Wei. "My old friend Zhang Luan's poems are easy to read, and he can also draw a green grass and see it with poetry."

The story that the cursive script of the group fan ignores the internal history is the story that Wang Xizhi gave the old woman a fan. This story is that Wang Xizhi once met an old woman and peddled a hexagonal bamboo fan. Wang Xizhi wrote an inscription on his bamboo fans, and each fan wrote five words.

At first, the old woman was full of anger. He said to her: "You only said that this is Wang Youjun's calligraphy, and each fan can be sold for 100 yuan." The old woman sold it as he said, and people rushed to buy it. The next day, the old woman brought a fan and asked Wang Xizhi to write. Wang Xizhi just laughed, but he didn't continue to write.