Immortal for Eternity: My Black Tortoise and I Outlast the Heavens

After transmigrating to the cultivation world, Li Wen awakens the Longevity System and receives a longevity black tortoise as a bonus.

In this perilous cultivation world, a dark forest where people routinely search souls and refine spirits, Li Wen has an epiphany: Why risk your life fighting? As long as I can defend myself, I can simply outlive my enemies!

The System provides one point of "absolute defense" each year, with 100% damage reflection.

So Li Wen takes the black tortoise and retreats to the mountains to farm, beginning an exceptionally cautious life.

A hundred years later, the bully who stole his spirit herbs dies of old age. Li Wen shows up right on time at the funeral to devour a giant pork knuckle and dance on the grave.

A thousand years later, the Immortal-Demon War shatters the continent. Li Wen hides in a safe room three thousand meters underground, snacking on melon seeds with the black tortoise as they watch the chaos unfold.

Ten thousand years later, the mighty Demon Emperor who would destroy the world strikes Li Wen's thatched hut with his blade. The blade shatters, and the Demon Emperor is shaken to death, body and soul.