Xu Yanqiu, a modern graduate student in history, accidentally activates an ancient bronze artifact and transmigrates to a cultivation world in the prosperous Xuan Yuan era. After saving Nangong Yue, who bears the imperial seal, he awakens the Chaos Spirit Vein sealed within him and breaks through to Foundation Establishment by devouring thousand-year-old frost jade marrow. The ancient demon-clan Reincarnation Pearl inside his pocket watch and the dragon-blood jade bracelet gifted to him by Nangong Yue draw him into the vortex of the “Profound Yin Fate,” foretold by the Imperial Preceptor twenty years ago. Hunted by the Blood Fiend Guards, awakening spirit-sight, and discovering the phantom image of a silver dragon asleep in the heart of the earth, Xu Yanqiu realizes that his fate across time is closely tied to the grand struggle between the Northern Prince’s manor, the South Sea merfolk, and the Western Regions’ witch-curse clans. The half of a jade pendant left behind by his mother is guiding him to uncover the truth of how the Dragon Abyss’s reverse scales tore apart the laws of heaven and earth at the dawn of chaos.