Reincarnated Swordmaster - Chapter 261

The end of the world is coming, the world has undergone great changes, and everything has changed. Plants, animals, and even insects, as long as there are living things, have mutated.
Become more powerful, and even evolved supernatural abilities, such as chickens and ducks that can fly to the sky, such as cats and dogs that can breathe fire.
But only humans, without any obvious changes, seem to have fallen from the top of the food chain to the bottom of the food chain overnight.
Any creature that can open its mouth to eat can treat humans as food.
But fortunately, this world has not completely killed humans. Gradually, humans discovered that they had the ability to cultivate compatibility with other creatures.
As long as it has a high degree of compatibility with some powerful mutant creatures, it can be used for its own use to achieve the purpose of protecting itself.
Fang He is a person who is very compatible with mutant animals, but it is also because of his ability that he has changed from the strongest to the stupidest.
Fang He, who was reborn, said, “Hmph, this time…”

- Description from novelbuddy

Global mutation, the game descends into reality, and humanity enters an era of universal job change!Qin Xian starts as a classic villain, born into an ambitious villainous family, willing to use any means necessary to achieve his goals, even at the cost of overthrowing the entire empire!From the outset, he aims to hunt down the Son of Luck, destroy his future, take his goddess, and kill his parents, forming a deep-seated blood feud.The Son of Luck vows revenge! But Qin Xian doesn’t care at all.Who says the villain will inevitably be defeated by justice? Who says the villain must be a stepping stone for the Son of Luck?In this life, Qin Xian will rise as a villain, stepping over the bones of the Son of Luck, ascending to the pinnacle, achieving the ultimate supremacy, and use the gods as his chess pieces.He intends to write the perfect villainous life.

The story is about a guy transmigration in scott pilgrim vs the world with a system he also travel to other worlds, anime worlds and movies and animation series and and games world.I know some of you probably don't know about the Scott pilgrim world but don't worry.MC doesn't have a tragic past or anything, he had normal life and had normal problems and then transmigration into the the Scott pilgrim world.The worlds:Scott pilgrim worldkonosuba worldDanny phantom worldblack clover world( very short)gamer manhwa world(very short)Cyberpunk: Edgerunners world(More worlds will be added later, he also doesn't leave a world for another one, he travel between them)Respective series mentioned are credited to their respective owners, I only own MC and ocIt's my first time writing and English is not my first language

Shaymon, the man who has achieved the apex of dark magic, is framed as being a Demon King and is killed.