MTL - Yu-Gi-Oh!: Underworld Boss, Cancerous Creator God - Chapter 155

In a fascinating new world, Sam finds himself reincarnated as a developer of unique simulations for a society of monster hunters known as “Hunters.” These skilled individuals employ advanced simulations to sharpen their abilities and acquire new skills essential for their dangerous profession. Drawing from the popular video games of his past life, Sam crafts immersive experiences that challenge and prepare the Hunters for the perils they face. As he navigates this thrilling realm, he discovers the impact of his creations and the true essence of bravery in the fight against formidable monsters.

The constant mission is getting redemption.

Shuttle though various worlds to become a variety of scum men, do a little whitewashing and become a good man in the eyes of everyone.

Redeem those who are miserable, and let them live a happy life.

- Description from Novelupdates

A regular senior high school student accidentally obtained a Supernatural Ability System from three thousand years in the future. Lin Tian could exchange for all kinds of superpowers within the Supernatural Ability System. Exams? I have a photographic memory! You’re amazing? I transform into a Saiyan! An awesome life doesn’t need explanations!

[However, due to mysterious anomalies during host's initial awakening trial, the Aetherfall protocol has been permanently altered.Host will be subject to mandatory sequential trials even after other hosts have been offered options to trials— ALL TRIALS FOR HOST WILL BE MANDATORY.Until Paragon Ascension has been exceeded.Failure to complete any trial will result in the utter and irreversible termination of spirit and vessel.In summary:Host will either survive or be terminated.]---The regular nobody, done in by Truck-kun after being... distracted,transmigrates into the body of a side character from his most hated novel—during the awakening trial.Somehow, he finds a way to survive... or so he thought.In a world where everything revolves around the MC, a side character destined to die can only bring bad omens.He's given a near-impossible task by the trial system of this world—along with no option to reject other than death.And in a novel where characters were once one-dimensional, they’re now being seen from every side and perspective—things are far more complicated than he ever imagined.A world where heroes are hidden psychopaths, villains are deeply misunderstood,teachers are unstable, and teenagers are... Let's just say hormonal.What could possibly go wrong?