Li Tianwei, a transmigrator, is classified by a system as having a false spiritual root, yet he firmly believes himself to possess an unparalleled heavenly spiritual root. Using modern mathematical and scientific knowledge, he independently develops techniques and supernatural abilities such as the Fission Qi-Attraction Method and Heavenly Absolute Yin Fiend. Despite his false spiritual root, he achieves Foundation Establishment in a hundred days, comprehends dozens of Dao principles, and repeatedly humiliates those who doubt him. He slays demonic cultivators, purges evil forces, and ventures into the forbidden Taixu realm, forging a unique path to immortality. Blending exhilarating triumphs with striking contrasts, the story features sect power struggles, conflicts between sworn brothers, and an invasion by extraterrestrial fiends, with a brisk pace and constant twists.