No background. According to a search on Douyin, I learned that the uncle and the second uncle in Douyin are good friends on Douyin. The two called each other uncle and the second uncle in the video. They are ordinary people with no background. The video of Uncle Er Shu on Douyin was synthesized. From 2020 to 2021, the two people spread positive energy on the Douyin short video platform. They promoted the anti-fraud app through Lianmai and also promoted the positive energy of the country, so they also became popular. network.