What's the name of the bearded man talking about business knowledge in Tik Tok?

In Tik Tok, the bearded man who talks about business knowledge is called a grumpy old horse. He will post videos on Tik Tok from time to time to explain the economic situation and business knowledge.

Tik Tok is actually a product of ByteDance and developed by ByteDance. ByteDance also has many well-known apps, such as today's headlines, volcano videos, watermelon videos, Pipi shrimp and so on.