MTL - Conan’s World Stand-in - Chapter 53 such a script

Betrayed by those he empowered. Slain at the peak of his reign. Reborn into a world unworthy of him.Tian Mo was once a supreme cultivator, a dark sovereign who ruled with absolute might and terrifying intellect. After a million years of conquest, his closest allies turned on him, stripping him of everything. But fate offered no rest. Reincarnated into modern-day Earth, he awakens in a weak mortal body—yet his memories, ambition, and ruthlessness remain untouched.In this strange new world of technology and fragile peace, Tian Mo finds new prey. With the Primordial Chaos Demonic Evil Physique and the forbidden Divine Sins Emperor Technique, he begins building his empire from the shadows. He manipulates the system, devours the corrupt, and topples the powerful—not out of justice, but vengeance... and the endless hunger for power.There are no heroes in this tale. Only a monster reborn—and the world that will burn beneath his feet.

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?

When Fang Yuan was transmigrated into a world where Gu Breeder was the main profession, he found that he was not gifted.

Not only that, the Gu in his body could cultivate on their own.

[Your Iron Skin Gu has trained profoundly and has achieved the Gold-grade!]

[Your Bloodthirsty Gu has begun to multiply itself into a swarm of Bloodthirsty Gus!]

[Your Sunlight Gu has been absorbing the power of the sun for years and has gathered the Truth Flame of the Sun!]

[Your Drunken Gu has evolved into a Soul-reaping Gu. Your control over it has risen by 100 folds!]

[Your Flying Sword Gu was hurt in battle. Amid its desperation, it has evolved into a Sword God Gu!]

“Heck, even Gu undergoes involution as well now?” Fang Yuan let out a sigh.

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.