Acquiring Talent in a Dungeon - Chapter 35 - Day 8, Fishing

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

- Description from Novelupdates

A thousand-year dynasty would inevitably face decay, and a hundred-year noble family would eventually return to dust.What in this world could last forever?Was it an Immortal Body, tempered a thousand times, or the Martial Arts will, in Heart Unity with heaven and earth?Chen Mu came to this world, his sword in hand, and when he turned back at dusk, countless heroes and millennium-old Demons had all turned to dust, leaving only one person on the road paved with yellow sand.

In a world where everyone awakens a Trait to start their cultivation, Rhys's was considered a joke: he would never age.In a world that worships raw combat power, a Trait granting eternal youth was worthless. To his powerful family, Rhys was a talentless failure, a stain on their name. With disgust, they cast him out onto the streets, leaving him with nothing.Alone and powerless, Rhys's life was shattered when he was caught in the crossfire of a terrifying battle between two god-like cultivators.Mortally wounded and left to bleed out in an alley, he faced a lonely, pathetic end.But as Rhys's vision faded and his last breath drew near, a new power roared to life within him.[Lifespan Burning System Activated]Suddenly, his useless Trait became Rhys's greatest weapon. His infinite lifespan was now the ultimate fuel source.A divine martial art that takes a genius a hundred years to master?[Consume 100 years of lifespan. Skill comprehended to Maximum Level.]A fatal wound that no healer can mend?[Consume 10 years of lifespan. Body restored to peak condition.]An ancient, unreadable text holding the world's greatest secrets?[Consume 500 years of lifespan. All knowledge unlocked and understood.]From the brink of death, Rhys rises with a burning purpose.The world saw him as trash, but now he will trade his endless years for the strength to stand above all.(Posting this on RR under pen name Unnikuttan)

It was in the year 2800 of the Midgard calendar. Back then, there was a Overlord who once reigned supreme and had reached the very brink of subduing the world.