The Great Luo Golden Immortal Xu Xuan fell in an ascension scam in the upper realm, his soul reincarnating back into the modern metropolis. On his eighteenth birthday, his sealed past-life memories awaken, and he is startled to discover that this world hides mutant monsters called Demon Seeds, which instinctively hunt their beloved ones after awakening in adulthood. Su Wan, the school belle of Jiangzhou University, confesses to him; the seemingly romantic date is actually a hunt by a Demon Seed. Xu Xuan, having long known the truth, pretends to accept the date and immobilizes Su Wan with a talisman, intending to refine this blood-food seed into a corpse puppet and extract the Demon Seed's baleful energy as cultivation resources. In a present world lacking spiritual Qi, relying on his millenniums of immortal cultivation experience, he balances dealing with Demon Seeds and special agencies while hunting demonic monsters.