Xu Yang is male, over 100,000 years old, and belongs to the Tianlan Sect. As the founding disciple of the Tianlan Sect, Xu Yang was trapped in the Qi Refining stage for 100,000 years and secluded himself for 10,000 years. During this time, the Tianlan Sect gradually declined due to its involvement in the destruction of the seven ancient sects.

His weapon, the Life-Protecting Sword, was forged by his master, Jue Tiantong, from meteorite iron from the void. He possesses spirit beasts such as Happy and Cloud Beast. His disciples include Pu Linger and Ling Qingshu, among others. His senior brother is Huo Bufan, and his senior sister is Chao Feng.