Inheriter of Chu bamboo slip making skills: Searching for text codes that have been dusty for thousands of years. Huang Youzhi said that what he just copied was circulated and used in the Chu State more than 2,000 years ago.

He compared the complex writing materials of the Warring States Period with the ancient texts of "Shuowen Jiezi" and copied and studied them repeatedly. There are more than 3,700 bamboo slips, more than 50,000 characters, and more than 4,000 prefixes.