Kill Me More Times, I'll Become Invincible - Chapter 5:

Alex Moriarty, an orphan, was transmigrated into a high-level martial world after being murdered by his so-called little sister, the very person he had always protected with his life.The world he arrived in was a parallel version of Earth, yet it had been completely transformed.Five hundred years ago, a strange and terrifying dark miasma descended upon the planet. Space itself cracked open, and through those rifts poured horrors beyond imagination. The land expanded to thousands of times its original size, reshaping continents and oceans alike.Ordinary animals mutated into ferocious monsters, while mythical beings such as Godzilla, dragons, and phoenixes crossed over from unknown realms.In a single night, eighty percent of humanity was wiped out.The few survivors were preserved only because of a mysterious sanctuary known as the Light Domain.At its very center stood the Tower of Ascension, a colossal structure with one hundred stairs. When humans reached the age of fifteen, they were allowed to challenge the tower.The number of stairs they climbed determined their cultivation talent and bloodline. Before facing the tower, no one could cultivate or surpass the natural limits of the human body.But Alex was different.He possessed a game-like system that allowed him to cultivate even before setting foot in the tower. While others waited helplessly for their awakening, Alex grew stronger in silence, accumulating power far beyond what should have been possible.When he finally turned fifteen, he challenged the Tower of Ascension. Step by step, he climbed higher than anyone in history, reaching the hundredth stair as the sole existence in the entire universe to do so.At that moment, he awakened five Eternal Grade talents.[Eternal Grade Constitution: Primordial Chaos Physique][Eternal Grade Bloodline: Existential Nullity][Eternal Grade Eye of Revelation][Eternal Grade Cultivation Talent][Eternal Grade Sword Talent]With these five unparalleled talents and his Infinity System, which allowed him to cultivate passively twenty-four hours a day, Alex embarked on a path of absolute power. His journey was driven by two goals: to find his lost father and to make the Earth safe for his mother.

Du Yu has no clue about how he has transmigrated to a world of demon taming.He is also in a state of confusion when he contracts the Golden Crow that was literally a sun.“Are you from the legendary Golden Crow Race? What do you want to do?”“Don't, drive me away. I can, help you, with cultivation, is that okay?”

…Ring! [ The Unique Skill ‘Grand Devourer’ has been acquired! ]

That’s how it first started.
And then… it didn’t stop:

[ The Unique Skill ‘Evolve’ has been acquired! —
[ The Passive Skill ‘Jelly-like Shapelessness’ has been acquired! —
[ The Passive Skill ‘Resistant Body’ has been acquired! —
[ The Unique Skill ‘Dwell’ has been acquired! —
[ The Unique Skill ‘Skill Copy’ has been acquired! —
[ The Passive Skill ‘Mana Perception’ has been acquired! ]

Up until…

[ The Passive Skill ‘Consciousness’ has been acquired! ]

And then I was through—

Normally, monster-type creatures don’t just pop up in some random place—let alone a human place—out of the blue, and without notice.
Yes, if we’re talking ‘normally’, monsters belong more to places like remote, hostile grounds: they ought to be from dark, nasty forests, old caves, or abandoned, ancient ruins.
As I said, it was only so long as we spoke of the usual deal, however. For better or worse, I wasn’t your regular mob.
So, forget about all the remote, uneasy places humans hardly go to—all the abandoned forests, caves, or dungeons I, a monster, should have been from—and picture a bright, lively family restaurant, in an oh-so-peaceful human village. A restaurant where people ate, chatted, and jested together, all having a good time, blissfully oblivious to the fact that, very soon, I would be cutting them all down.

By magic, a monster-type creature spawned in such a place. It was me.
So far, for the few seconds I had been living, it was quite the good life… I got to listen to a fantastic story being told and shared a cool moment with people.
However! Following an uncertain course of events, I happened to be put up against a wall, with a sword aimed at my chest, before I was mercilessly killed.

I, a unique monster, just spawned in that restaurant, with no clue regarding what was going on.
All I knew was that I wanted to live and survive.
Also, I knew I wasn’t your regular kind of monster.
Thankfully, I’d been granted unique abilities before I showed up.
That is how I managed to survive.

Without noticing it, a man called Bill passed away, but then he realized that his life wouldn’t end that way and soon he was reborn as Billy in another world. Billy was already satisfied enough that he retained his memories, but the surprises didn’t end there. He was born with a weird power that granted him the chance to convert mana into experience points and transmit it to all sorts of things.

Things were looking pretty good until he noticed that he was born in an impoverished and rustic village that was facing their imminent extinction in the hands of creatures that he had never heard of before and other tribes that had all sorts of abilities. Before he could learn how even to crawl, Billy had to find a way to help his tribe. Otherwise, they will be annihilated before he can even become strong enough to stand.

Billy’s journey will be much different than he had imagined. Much farther away from Earth than he had originally thought, Billy will have to adapt to a new environment where his tribe is at the bottom of the food chain. Will he be able to grow up safely and try to change things for the better for his new family and friends?