Traveling across the Xuanhuang Continent, Xiao Chen became the destitute king of the Seven Domains of the Great Yan Dynasty who was far away from Canglan City. When he woke up, he was poisoned and murdered by Su Mochen, the son of the Prime Minister, and his beloved princess Lin Qingwan was forced to commit suicide to save her life. At the critical juncture of life and death, the Invincible Emperor System was automatically activated, gifting him the most supreme skill in the world, "The Art of the Heavenly Emperor", and a massive amount of experience pills to help him break through the shackles and reach the second level of Qi refining.
Relying on the foundation of the old army of Wei Cang, Mu Wenyuan, and Shi Meng, Xiao Chen used the heart of the Emperor of Heaven to recruit eternal divine generals, forge innate divine weapons, refine the nine-turn divine elixir, and use Canglan City as the foundation to continuously consolidate the dynasty's national destiny. Clear out the Su family's rebel party in the city, confront the invading army of Beishuo Kingdom head-on, encroach on surrounding forces and small countries step by step, abandon the son from the edge of the Great Yan royal family, cross the ten levels of martial arts, ascend to the realm of Godless, sweep across all races and countries in the Xuanhuang continent, overthrow the decadent old dynasty, establish his own eternal central heaven, and become the sole emperor of Xuanhuang who controls the entire world.