Battle Through the Heavens: Emperor Yan, please restrain yourself; your elder brother is truly hones

Xiao Yan, the future Flame Emperor, the master of the Endless Fire Domain in the Great Thousand World.
Zhang Yuan, the future Heavenly Emperor, is the first Sovereign Realm expert in the Great Thousand Worlds.
Xiao Yan: "Zhang Yuan is the son of my aunt and maternal uncle, my true and dearest relatives and friends, my most trusted cousin. He is more talented than me, more intelligent than me, and has a broader vision than me. He is the man that my teacher and I respect the most."
Zhang Yuan: "Given my blood relation with Xiao Yan, I only need to lie low and develop, take some pills, and I can become a Dou Sheng or even a Dou Di without even lifting a finger. Then I can go to the Great Thousand World to seize Mu Chen's opportunity and become a Dominator. The plan is working."
Xiao Yan: "The rise of my Xiao family is entirely due to my cousin. I have no way to repay him but to please him."
This book is also known as "Emperor Yan Suffers, Emperor Heaven Enjoys Blessings" and "The Rise of Xiao Yan, a High-Level Employee: A Bystander's Diary," etc.