Modern college student Lin Yu was pulling an all-nighter to finish a paper when a strange thunderstorm struck him. When he opened his eyes, he had transmigrated to the perilous primeval world and found himself in the body of a good-for-nothing rogue cultivator born with an innate deficiency! Surrounded by Azure-Patterned Wolves and besieged by Scarlet-Flame Ants, he was in a deadly predicament from the start. Luckily, a broken jade pendant awakened the ancient cultivation art, the Primordial Hongmeng Scripture, and helped him gain a precarious foothold in the wilderness.
After a chance encounter with Qing Yue, an innate spirit maiden, the two supported each other. They cultivated together in the valley, trained in the mountains, joined forces to slay a Green-Eyed Bear, and outsmarted a Profound Ice Serpent, breaking through from Qi Refining to Foundation Establishment. They found the Hongmeng True Exposition in an ancient cave dwelling, obtained the prototype of the Cosmic Ruler in Bluestone City, and sought treasures in secret realms and explored the Dragon Palace in the East Sea. Every step brought them to the brink of death, and every breakthrough came with astonishing opportunities.
In the chaotic primeval age, the witches and demons vie for supremacy, rogue cultivators turn on one another, and countless factions clash. Combining modern ingenuity with ancient cultivation arts, Lin Yu uses the Cosmic Ruler to master the laws of space. With Qing Yue at his side, he ventures through markets, battles demonic cultivators, breaks into secret realms, and explores the Dragon Palace. From an obscure transmigrator, he gradually grows into a Golden Core powerhouse who shakes the primeval world.
As the flames of war between witches and demons spread and ancient ruins conceal deadly dangers, ever stronger enemies and greater opportunities come one after another. Can Lin Yu and Qing Yue survive in this primeval world where the strong prey on the weak, refine innate spiritual treasures, perfect the Hongmeng cultivation art, and ultimately break through their shackles to attain immortality?