Lin Chen, a collateral-line disciple of Qingfeng Village, was born with blocked meridians and became a “good-for-nothing,” mocked by everyone and persecuted by the main family, who repeatedly plotted to kill him. On the brink of death, the black jade pendant passed down through his family awakens. It turns out to be a Primal Dao Seed formed from a fragment of the ancient Heavenly Dao. From then on, it breaks through the shackles of cultivation and sets him on a heaven-defying path.
From struggling to survive in the Blackrock Mountains to making a name for himself in the art of alchemy in the Qingyang Dynasty, then competing in trials at sects in the Spirit Realm, Lin Chen uses the Dao Seed to devour unusual energies and decipher ancient legacies. He advances through the realms of Body Tempering, Core Condensation, Nascent Soul, and Divine Refinement, and makes lifelong friends in Chu Fan, a loyal and righteous sword cultivator; Princess Su Qingyao, who cares deeply for the people; and Hu Xiaoyue, a lively and guileless princess of the demon race.
As his strength grows, the mysteries of the ancient severed realms, the secrets of the incomplete Heavenly Dao, and the threat of demons lurking in the shadows gradually come to light. The Primal Dao Seed, it turns out, is the key to completing the Heavenly Dao, while the demons from beyond the realms are an amalgamation of the Heavenly Dao’s negative energy, seeking to devour the seed and overthrow the Profound Realm. Lin Chen leads an alliance of the heavens, setting sail across the Sea of Realms and shedding blood on the battlefield between worlds. At the core of the Heavenly Dao, he makes a choice and takes the heaven-defying path of “fusing with demonic energy to evolve the Heavenly Dao.” He fights off the invasion of the Annihilation Clan and ultimately becomes the sovereign of the Primal Heavenly Dao.