Zhang Yi, a disciple of Yujing Mountain, is a cultivation genius who breaks through to the Heavenly Dao realm in just twenty years. His master, Zhao Xuanyi, falsely claims that Zhang Yi has no cultivation roots and forces him down the mountain. After descending, Zhang Yi saves Zhang Qingzhi, who was secretly targeted, showcasing his extraordinary medical skills. This impresses the divine physicians, who believe he has achieved the Great Luo Saint realm. Zhang Yi is recommended to the Huayu Immortal Sect, and during a spiritual root test, nine golden lotuses explode, pushing his cultivation beyond the Heavenly Dao and making him the greatest person of all time. He is soon caught in a marriage dispute between the Wuzhuang Temple and the Falling Flower Cave. When the Daoist Immortal Zhenyuan of Wuzhuang Temple is poisoned, Zhang Yi decides to refine a pill to detoxify, successfully creating the Tianyuan Golden Elixir and defeating other alchemists.
