The universe encompasses all directions and all things; time spans past and present. In the buried age of the Immortals, True Immortals were no legend, and Immortal Kings could look down upon all living beings with a single glance. It was a golden age of cultivation, and also a tragic song sung by all.
Fang Yuan dreams of returning to the Immortal Age. The instant he opens his eyes, divine radiance surges forth. The Ancestral Sacrificial Spirit guards the ancient realm, while the World Tree props up the Nine Heavens. Rising from humble beginnings, he uses his body as a furnace and the world as a seed, bringing together a flawless Dao seed forged across the ages to build the foundation of an immortal and indestructible Immortal King! Even the descendants of True Immortals feel their souls splinter and their legs shake before his dragonlike vitality. He sweeps through his peers in a dazzling age, reaches the pinnacle, and stands alone across the cosmos.
But the golden age is on the verge of collapse. When the iron cavalry of foreign lands smashes through the boundaries between worlds and a dark tide engulfs the Nine Heavens, Immortal Kings fall like rain, and the Primordial Ancient Realm crumbles inch by inch. Wearing battered armor, Fang Yuan fights until his vital essence is spent. He slaughters until madness takes him and battles until he loses his mind, yet in the end he cannot stand against the Dark Source. He watches helplessly as the era comes to an end. At last, his battered body is gravely wounded and buried in the endless void at the very depths of the Immortal Realm, drifting with the current.
Seas turn to dust, and thunder and lightning fade away. No one knows how many eras pass. By the time the Immortal Age has dwindled to a few lines in the history books, the Primordial Era has arrived, an age in which countless races rise and Ancient Emperors dominate the cosmos. A stone coffin, silent for countless ages, suddenly shudders and crashes down, flattening the towering divine mountain in the Divine Ruins.