Harry Potter with Technology System - Chapter 3: Quests!

Eighty years ago, the Abyss suddenly descended upon Yan Luo's world. Humankind was shocked to discover that their most proud weaponry struggles to kill even the weakest demons from the Abyss.The birth of Engravings is a silver lining, which enables humans to harness magic power, drastically enhancing their personal combat abilities against demons.Yan Luo, who determines to be a demon hunter since he was young, however, finds himself unable to imprint any Engravings, but he still decides to embark on his demon-hunting journey even without magic power.“...That can't be right, you haven't gone through the Engraving yet. I see no record of it here, and you're leaving already?”“Quickly register me. I need to reach the exploration town before nightfall.”“Kid, come back if you can't handle it! No one will laugh at you!”

On this land of real souls, with millions of different martial art institutions, there are so many strong fighters just like the trees in the forests.

Among all, a mediocre apprentice from one of the mediocre institutions suddenly became a martial art genius after a mysterious incident. Not only did he acquire a photographic memory and keen perception, but he had also come to discover that his ability to comprehend martial arts is astronomically good, which eventually made him an almost godly existence.

From the hot-blooded intense battles to the clashes between the top geniuses, Martial Arts is no longer limited to the mortal world, it reaches to a level that can do everything from controlling the oceans to flying up the sky and diving under the ground.

- Description from Novelupdates

A cursed CD game falls from the sky. I boot it up, build a ridiculously handsome villain with broken talents, and just as I hit “Start”—boom, I get electrocuted.Now I’ve reincarnated as Lucien Caelum Valebrandt, a six-year-old noble and the infamous villain who helped the Abyssians win the last war.Every 500 years, the Abyssian King is reborn. But when the 16 chosen heroes of this generation lost against the battle of the Abyssian King because of my character, the Goddess panicked—and rewound time.Now those same heroes remember everything… and they want me dead.Even though I just got here.All I wanted was to play a game. Now I’m the villain blamed for destroying the world.

This stands at the forefront of strategy guides to Life (a shitty video game)!