Imagine waking up not to a new day, but a new life. That's the reality for Li Fan in *Immortality Simulator*, a man who finds himself in a world both familiar and utterly alien. He lives a simple existence, content yet unfulfilled, until death unlocks a power beyond comprehension: Return to Truth. With this newfound ability, Li Fan can relive his entire life in a virtual simulation, then return to his youth armed with invaluable knowledge. He sees this as his chance to achieve the impossible: immortality through cultivation. But the path ahead is fraught with peril. The cultivation world is far from the idyllic paradise he envisioned. Generations of reckless cultivators have angered the heavens, resulting in a world plagued by the Immortal-Mortal Miasma, a deadly disease for cultivators, and random calamities sent by the Heavenly Dao. Every cultivation technique can only be practiced by one person. The heavens themselves seem determined to prevent anyone from achieving eternal life. Faced with such overwhelming odds, can Li Fan overcome the universe's resistance and achieve his dream? Or will this hostile world prove too much, crushing his aspirations and leaving him to a final, definitive end? Dive into *Immortality Simulator* and discover a cultivation journey unlike any other, where the pursuit of immortality is a desperate battle against fate itself.