What is the relationship between Xuan Lao and Mu Lao?

Teacher-nephew relationship. In the novel Douluo Mainland, Mu Lao is the youngest disciple of Mr. Xuan's ancestors, and Mu Lao is his little uncle, so he is related to Mr. Mu's nephew. Douluo Continent is a long fantasy novel written by Tang Jiasan Shao. June 65438+February 65438+April, 2008, the serial started at the starting point and ended on August 20 10. Published by Taibai Literature and Art Publishing House in May 2009.