Starting With Contract Pets - Chapter 291 - Sea Abyss Dramatic Change

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!

The end of the world is coming, the world has undergone great changes, and everything has changed. Plants, animals, and even insects, as long as there are living things, have mutated.
Become more powerful, and even evolved supernatural abilities, such as chickens and ducks that can fly to the sky, such as cats and dogs that can breathe fire.
But only humans, without any obvious changes, seem to have fallen from the top of the food chain to the bottom of the food chain overnight.
Any creature that can open its mouth to eat can treat humans as food.
But fortunately, this world has not completely killed humans. Gradually, humans discovered that they had the ability to cultivate compatibility with other creatures.
As long as it has a high degree of compatibility with some powerful mutant creatures, it can be used for its own use to achieve the purpose of protecting itself.
Fang He is a person who is very compatible with mutant animals, but it is also because of his ability that he has changed from the strongest to the stupidest.
Fang He, who was reborn, said, “Hmph, this time…”

- Description from novelbuddy

What if you received a divine artifact?What if yours was the strongest soul in the world?What would you do with the power to simulate anything, even an entire solar system?Follow Jack as he learns how to use his new gift, makes new friends, dominates the technology sector, travels to the stars, and so much more.There will be a harem, but Jack will not be snatching up every girl that smiles at him.There will be R18, but it won't be the dominant theme.There will be robots, and nanotech, and so much more.And maybe a face or two will get slapped along the way.

When Peter is transported to a brutal system-driven world, where stats, skills, and paths to power are granted upon turning eighteen... He gets nothing.Thrown into a military training regime where the weak are discarded and the strong survive, Peter should have been erased.Alongside Thea, a fierce warrior, and Elric a determined healer, Peter claws his way forward. Creating and rediscovering the secrets of Cultivation and World Force.But as he defies the rules of the world, the world starts to notice.