Jiutian Immortal returned from his life and found that... He had lost his memory.
Kung Fu? Don't know. Pill? Don't know. Magic weapon? What is that?
The memory of the previous life was fragmented, leaving only the fighting instinct of a strong man and an inexplicable aloofness of "I once stood on the top of all worlds."
While other reborns were pretending to be pigs and eating tigers, seeking revenge and being slapped in the face, the protagonist Ling Yun was in the library, reading "Quantum Physics" in one hand and "Compendium of Materia Medica" in another, trying to analyze the unscientific stuff like "spiritual energy" from scratch using modern scientific theories.
"They rely on inheritance to cultivate immortality, while I rely on imagination and deduction to cultivate immortality!"
"They regard mortals as ants, but I regard knowledge as power!"
"They want to kill them back to the fairy world. I just want to figure out... Who am I? And who made me reborn and took away everything from me?"
This is the story of an amnesiac immortal who, in a city with resurrected aura, abandons the old path and goes retrograde. Based on science and guided by instinct, he redefines "immortal" and "Tao" and finally reveals the shocking conspiracy behind his rebirth.