There is no master. According to the inquiry of Liu Desheng's personal information, it was found that Liu Desheng's running script was created by himself and he did not learn from others, so Liu Desheng did not have a master. Liu Desheng, courtesy name Junsi, was born in Yingchuan (now Yuzhou City) and was a famous calligrapher during the reign of Emperors Huan and Ling of the Eastern Han Dynasty. The founder of running script calligraphy, he was also called the "originator of running script" by later generations because he created the "running script" font between regular script and cursive script.