I Came Back And Conquered It All - Chapter 60

Aelock, proud of belonging to a prestigious noble family, falls in love at first sight in a chance encounter with Klopp, who belongs to a lower-ranking noble family. Aelock approaches him without paying any mind to the difference in wealth and status, even disregarding the taboo of alpha-alpha relationships. However, Klopp takes no notice of him and marries another omega.

A cultivation story about how a declining sect is restored by a narcissist, a troublemaker, a meanie, an idiot, and a wimpy kid.

- Description from Novelupdates

Ash Burn was just an ordinary gamer—an orphan scraping by in the real world—until he accomplished the impossible: beating the hardest VR game ever created, Apocalypse Online. But instead of the promised riches, he’s thrown into another world—one eerily familiar.It doesn’t take long for Ash to realize where he is: the chaotic, doomed universe of Heaven’s Favorite: Wrath of Gods, a novel he once read. Worse, he’s not the protagonist or even a supporting character.He’s just an extra.Armed with fragmented knowledge of the future, an unyielding will to survive, and the secrets of the Runes—mysterious power coveted by gods and demons alike—Ash must outmaneuver a reckless hero, power-hungry angels, and an inevitable war that threatens to consume everything.But as he treads the fine line between altering fate and unleashing chaos, he begins to realize something chilling: the endgame may not be as simple as he thought.In a world where survival hinges on power and cunning, can an ordinary extra change the fate of an entire world, or will he become just another casualty of destiny?Was he ever just an extra to begin with?Note: The image on the cover is not mine.

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.