MTL - Maximum Comprehension: Taking Care of Swords In A Sword Pavilion - Chapter 18 True biography, welcoming the sword into the pavilion

A surgeon accidentally got the blessings of a system, shocked the medical industry, and rejuvenated countless people.

- Description from Novelupdates

Leon transmigrated and became a lab rat for Hydra. But he ended up awakening the sign-in system.[Ding, sign-in reward: Glint-Glint Fruit(Pika Pika no Mi).]He starts by destroying the Hydra Base.He accumulated some time and got himself another reward![Ding! Get the sign-in reward: Sun Breathing Technique.]

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

⚠️ WARNING ⚠️THIS NOVEL PARTICIPATED IN WSA 2025!---Nero Vaelheim. A name etched in history as that of a fleeting antagonist, a mere stepping stone for the heroes.But what if the pawn refused to be sacrificed?When a devoted reader is reborn in the body of this doomed villain, he has only one goal: to break the script, rewrite his fate… and bend this world to his own rules.After all, why settle for being an obstacle when you can become the ultimate threat?