What is the relationship between the big brother of AutoExpress and little A Qing?

There is no relationship between the two.

Brother Da Zhi, whose real name is Liu Chengzhi, is a handsome young man who is engaged in photography in Beijing. He posted several short videos on Aauto Quicker in the name of Da Zhi Ge, sharing his daily life, including diving, cooking and playing table tennis. His video style is humorous and deeply loved by users in A Auto Fast. As of May 22, 2023, Dazhi Brothers has become a celebrity anchor of auto online.

Xiao Aqing is an online celebrity whose real name is Li Qingqing. She was born in Yueyang, Hunan, and now lives in Guangdong. Aauto quickless is deeply loved by the audience with its fresh and natural image and sweet voice, and has more than 3 million fans on Aauto quickless. Its video content is mainly singing, dancing and performing sketches, among which the performing sketches are the most famous.