MTL - I, The System Maker! - Chapter 41

George Paddington, an orphan who lost his parents during the COVID-19 pandemic, was a prodigious video game blogger. One fateful day, he dies in an accident while saving a three-year-old child. However, instead of passing on, he wakes up in the Harry Potter universe—inside the body of a 15-year-old Severus Snape, right after his infamous fallout with Lily Evans.Armed with knowledge of the future and guided by Eva, an AI assistant-like system, George must navigate the complexities of the wizarding world. With humor, danger, love, and self-discovery shaping his journey, he embraces the magic, intrigue, and challenges of his new reality. Will he alter Snape’s fate or remain bound to the tragic path history has written?

Ed was transported into a world of Hunters, a harsh and extreme environment.In this world, winter days last only two hours, and even in summer, the daylight barely stretches to six hours!What makes it even more eerie is that when night falls, all creatures of various races turn into violent, frenzied monsters. Evil spreads everywhere, and the night itself becomes humanity's worst nightmare!Hunters, however, can only train through the Sunlight Meditation Technique, using the brief daylight hours to cultivate their strength.But Ed awakens the Moonlight Meditation Technique!From that point on, while others flee from the night, Ed thrives in it, growing stronger and stronger with each passing day!He slays dark sorcerers, exterminates vampires, and defeats the Wolf King!Gradually, Ed becomes the strongest human to ever exist!

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

The game spoilers turned out to be fake. The characters I gathered thinking they were heroes are actually all villains. In other words, I accidentally created a villainous organization.