In a world of boundless clouds and skies, where countless beings yearn for the heavens, the elusive天道 (Dao, the natural order) remains a mystery. Amidst the mortal realm, the pursuit of immortality is a common desire. This story unfolds a tale of lovers across three lifetimes, and the age-old feud between righteous cultivators and the demonic cult. With only himself and an ancient sword, how will one man confront the entire world?