Can You Mend My Broken Heart? - Chapter 12: Silent Companion

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

Nobody knew at the beginning of “Heaven” that the game itself would be awakened and gain complete self awareness to forid paying for game credits. After 10 years of development, Heaven's game credit has become the only currency interchangeable between reality and virtual reality. Inside the room, a player raises a pistol and points it at his very own head. Previously, he led a comfortable life as the son of a rich couple. But now, he was in a state of misery and destitution because of Heaven. He travels 10 years back in time and returns to the point in time when Heaven was to begin in a week's time. Being reborn, what was Chu You going to decide this time... P. S. The storyline is toxic and the protagonist is hardly sane. He is consumed by vengeance and acts wantonly. For entertainment solely. Read at your own risk.

[Fog Apocalypse] [Farming Survival] [Cthulhu Style]When Colin woke up, a gray mist had descended. The only sanctuary was the wooden cabin, where he woke up. To survive, he needed to light candles, push open the door, and look for supplies.[Mutants] [Suffering People] [Sea Monsters] [Fallen Sky] [Ancient Rulers]…Everyone was doing everything they could to gather resources, chop wood, mine, and build to defend against endless, terrifying invasions.In the midst of this never-ending terror and despair, Colin discovered he could receive “hints.”

Suddenly a high school student Subaru Natsuki has been summoned to another world on the way back from the convenience store. With the biggest crisis of his life being summoned to another world and no sign of the one who summoned him things become worse when he is attacked.