Li Changshou transmigrates to a world ravaged by demons and monsters, where he discovers that he has awakened a Lifespan-for-Power System. As long as he spends years of his life, he can strengthen his martial arts.
The problem is that he’s been poisoned, and has only two years to live. Luckily, killing his opponents lets him steal their remaining years.
He derives the Great Dao’s secret to eternal life from the Beastly Technique and grasps the Beast God’s Heaven-Suppressing Golden Body from the Tiger-Subduing Fist.
Countless years of life become fuel for refining his martial arts. In the end, a series of ordinary techniques allow Li Changshou to stand at the pinnacle of the human world.
After roaming the world, Li Changshou looks up at the heavens high above.
The human emperor, whose lifespan is boundless; the lord of demons who has devoured countless people; the undying Buddha who preaches throughout the world. He clenches his fists. He has come not for money or power, but to seize billions of years of life and prove the path to immortality.