Lu Mingyu was an ordinary young man living in the city until a car accident swept his soul into a fantastical realm among immortal mountains, where he became Qingxuan, an outer disciple of the Qingyun Sect. Over three hundred years of cultivation, he endured bullying as a novice and was tempered by life-and-death trials, eventually becoming Qingxuan, the revered lord of the Three Realms. But just as he succeeded in surviving his tribulation, he suddenly awoke from his immortal dream in a hospital room in the human world. His body had been paralyzed for three years, his beloved Su Qing had long since married someone else, and his three hundred years of cultivation had vanished completely. Before he could adjust to this enormous change, the peace of his everyday life was shattered: Xuesha, a major villain from the cultivation world, had crossed between realms to seek revenge, with Lu Mingyu and his mother as his targets. Stripped of his immortal powers, Lu Mingyu faces Xuesha in the mortal world, relying on his determination to protect his mother, the hope he has rediscovered in life, and a mysterious power of attachment he gradually uncovers. This is more than a clash between the immortal and mortal worlds: it is the legendary story of a man redeeming himself in dire straits and protecting the warmth of the human world.