The Misfit of Demon King Academy (WN) - Chapter 5.1

This is an extremely difficult game, if you don’t have enough skills, don’t even think about going out!

- Description from Novelupdates

Fifty years ago, the world changed forever when Earth was mysteriously connected to the Primordial World, a reality that operates like a game.This world can only be entered by Awakeners—people who have awakened with special powers. However, out of fifteen billion humans, only one million have this privilege.Enzo, a poor young man with no connection to the Primordial World, should have had no chance of becoming an Awakener.However, against all odds, he awakens... and more than that, he gains an innate skill unheard of before—the ability to make skills with only his imagination.In a world where power determines everything, how will a nameless young man carve his own path?

It is an era of artificial superintelligences, interstellar travel, gene medicine, and virtual reality worlds. Far into Earth’s future, 15-year-old Gu Ding is a student of Cerulean Military Academy by day, and tavern waiter by night. His ambition: Become the space pirate with the highest bounty offered by the Universal Federation Government. With the help of Neptune, a neonate super-intelligence, Gu Ding finds himself thrust into a galaxy of shadowy organizations, political underdealings, and otherworldly forces that lie beyond human comprehension…

A story about a traveler who crossed into a parallel universe, relying on his Proficiency ability to continuously grind experience and become stronger.