I Am the God of Games - Chapter 11 - New Believer

The protagonist, having degenerated into a “loser” after being unable to find employment, gets caught up in someone else’s attempt to commit suicide-by-train and ends up traveling to another world. The numerous cheat powers he demands from God are all granted to him. But contrary to expectations, these powers bring about disastrous consequences for the protagonist.

Having reincarnated into another world, the optimistic protagonist (Yuuri) starts his(her) heart-warming training days with his(her) teacher.

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

In the myriad realms, legends rise and fall in the countless eras.

Resident Evil, natural disasters… Zombies, the ice age…

Through movies and video games, humans have been familiarized to these kinds of, “doomsdays.”

But nobody actually believes that any of those things would happen.

Though from childhood Su Lifeng was a person that could foresee disasters, he never thought that one day he would be foreseeing the end of the world:

In 100 days, the entire world would fall.

Humans would be near the point of extinction.

Su Lifeng took a large, deep breath upon awakening from this vision: “I need to bust a load to calm down…”

- Description from Novelupdates