Who is Brother Gu Zi, the original god?

Xiaomi is a character in the novel God Save the People created by Mo Xiang and Tong Chou.

After his father was possessed by Qi Rong, he was called a base son by Qi Rong. The best way for Brother Gu Zi's outlook on life is to make his favorite role disgusting and worthless, especially for the Chef Party.