Shini Yasui Kōshaku Reijō to Nana-ri no Kikōshi - Chapter 86

2000 years ago a catacalism happend that changed everything, a mystrious type of enrgy called Ena was introduced to this world causing a wide spread mutation in animals and plants creating many bizzar new species every single organism changed and that included us humans as we gaind the applity to harness ena transforming us from mere mortals to super humens but the tiping of the pyramid was sudden and even with ena cultivators being born humanity could not stope the mutated beasts invasion, falling from the top of the pyramid as an apex predator of this world to a prey at lowest leveles of spectrom, 90 percent of the humen population were wiped out that was when someone discoverd that he could tame these beasts and use them to fight and grow stronger at a speed that seemed impossiple for any ena cultivatior saving what was left of humanity and curving a small pice of land as a sanqutary for the suvivers, those heros where called beast tamers and thats how this honoroble profisson was born.Waking up in a new world, Alan Ortex finds himself thrust into a bizarre and very dangerous new life. With a new family to protect and the desire to face the unknown, fear and excitement bubble up inside him. He will start his journey across the multitude of encounters that he will find in this new life. From a weak high school student, wondering and wanting to make a name for himself, wanting to enjoy his life to the fullest, as he promised himself on the first day he woke up in this new world. In this world full of bizarre creatures and beasts and unbelievable superpowered humans, he will become the strongest beast tamer ever—the absolute one.It's a tale of life, a journey into the unknown full of trials and one big mystery unfolding after another.Stay on your toes; it is going to get serious.

Qiaosheng, you are the one who saves me, yet you are also the one who gives me hell. If we cannot grow old together, I’d rather we’ve never met before.

- Description from Novelupdates

Lu Ze transmigrated to the interstellar era two thousand years later.
The previous owner of this body had lovey-dovey parents and a cute little sister. Although his cultivation talent was ordinary, his life was fulfilling. It could be said to be a dream start. Lu Ze was very happy.
However, as soon as he slept, he came to a strange dimension.
He almost got taken out trying to fight an one meter tall huge white rabbit. After making the arduous kill, Lu Ze found that things didn’t seem to be so simple.
After killing prey in this dimension, he could get little orbs that could be used for cultivation.
This was going to make him an eternal jungler.
But he seemed to be able to hope for domination of the cosmos and invincibility?

Ron finds himself reborn in the world of One Piece, stranded on a remote island in the East Blue. But he's not just any ordinary child—he’s bonded to a mysterious sign-in system that grants him powers with every new location he visits.At his first sign-in, he unlocks the legendary Sun Breathing Technique, along with a boost to his vitality. From Shitmotsuki Village to Skypiea, Enies Lobby to Marineford, Ron travels the world, collecting extraordinary rewards that make him a force to be reckoned with. The Raikiri, one of the 21 Great Grade Swords, Armament Haki, Observation Haki, and more fall into his hands.As Ron steps onto the battlefield of Marineford during the legendary Summit War, the mightiest warriors—Four Emperors and Marine Admirals alike—pause, stunned by his presence. But Ron merely waves them off, “Don’t mind me. I’m just passing through.”Join Ron on his journey across the Grand Line as he signs in at iconic locations, growing stronger with every step. This is not just an adventure—it’s a legend in the making.