Humanity Protection Company - 74 - The Man at the Door

With divine medical skills in his left hand and supreme martial arts in his right, carrying a century of memories, he was reborn and returned to the city. This life, he vowed to dominate everything, take control of all, and ascend to the zenith of the heavens!

In one moment, he was walking down the street with his little sister—In the next, he had traveled to the world of One Piece, carrying a system that could extract, record, and fuse genes to cultivate powerful lifeforms.Thus began a leisurely and carefree life in the most chaotic world imaginable.When bored, he’d snatch a bit of heavenly tribute meant for the Celestial Dragons.When curious, he’d raise a few cute kittens and bunnies just for fun.When restless, he’d wander through the territories of the most fearsome powers in the New World.Life is beautiful—so why bother taking anything seriously?

Jian Wushuang was reborn in adversity. In order to get his revenge, he began to cultivate Heavenly Creation Skill. With the help of the Heaven defying cultivation method, Jian Wushuang gradually grew into a peerless genius from an ordinary practitioner. With a sword in hand, no one is his match. Using his extraordinary Sword Principle, he killed all his opponents and eventually became number one Sword Master from time immemorial.

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