I Alone Level-Up (Web Novel KR) - Chapter 66

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

The Final Haven Kingdom.

The last known habitable place for humans. Protected by it's faithful Knights, it's walls were destroyed and rebuilt over and over again, signifying it's strength and unwillingness to bow down before the forces of evil.

Raven, a young man who's soul returned back in time with his memories intact, what are the changes that he will bring to prevent the kingdom's destruction?

Join his adventures along with his family, friends and his lover to find out what is his own Way of being a Knight.

An Extra is a minor background character with little to no influence on the main story. Their purpose is to fill out scenes and represent the larger world in which the story takes place.Yet,One Extra defied its existence. One Extra destroyed the story.********Luke, an editor, was transmigrated into the story with one goal:“Kill The Extra.”