Youkoso Jitsuryoku Shijou Shugi no Kyoushitsu e - Volume 1, Chapter 2: The students of class D Part 1

I used to think that my stealing skill only worked on what was worthless to a person.But just before I died, I realized that I could also steal the skills.So I stole the regression.

Thousands of years ago, a small planet collided with Earth and destroyed the world. In five days, ninety percent of humans had been wiped out, leaving behind the last ten percent to earnestly struggle on death’s door.

Jinyu was one of those people who survived. Due to a special heredity trait, he could understand beast language. After the apocalyptic disasters, Jinyu had been living for a month with the few small beast brothers that he’d subdued. Previously, Jinyu had thought that he would live like that until he died. Yet, inexplicably, one day he opened his eyes to find that he was in a monstrous, lawless world that was full of vitality and life.

Jinyu’s transmigration into the future let him skip over almost one hundred thousand years. In the year 106825, beasts rule the galaxies and ‘pure’ humans are extinct. As the one and only ‘pure’ human left in the entire universe, Jinyu braves this new chaotic world to find a place for himself and thus begins to work at Beast Store number 138.

- Description from Novelupdates

Once through the pirates, Lu En became the son of Monkey d Dragon, a grandfather named Monkey d Karp, and an unreliable and neurotic younger brother named Luffy.

Fortunately, the ghost back system is activated!

The completion of the ghost back is 10%, and the training effect is increased by 100 times!

The completion of the ghost back is 20%, and the training effect is increased by 1000 times!

…

One day, Lu En, a ghost-backed master, appeared in front of Luffy who was shouting to go to sea, and made Luffy cry on the spot.

Luffy: “The pirates in the sea are all monsters like my brother? I don’t want to go out to sea!”

Garp: “For a long time, the two boys, Long and Luffy, with small arms and calves, I really doubt that they are not my sons and grandsons. Like Lu En, they are the grandsons of the old man!”

Warring States: “The strongest creature in the sea, land and air is Kaido? No, it’s Lu En!”

- Description from novelbuddy

Levi, a young man who spent over a thousand years in a cultivation world, awakens in a hospital only to discover that two years have passed on Earth. The world he left behind has completely changed—mysterious spiritual energy has appeared, transforming Earth into a cultivation world filled with monsters, undead cultivators, and mysterious places like floating islands.Though Levi is furious that the entity who transported him to the other world failed to stop time on Earth as promised, he must now face the new reality. In a world now filled with cultivators, interdimensional conflicts, and the presence of a cultivation leveling system, Levi struggles to adjust to his weakened human body while seeking to uncover what happened to his mysteriously missing family.