MTL - Overturned Tower - ~ It's still a bit weak, but it feels like it can be restored and updated

Seven billion humans living on the Earth time-traveled together after they had woken up one morning. They all heard a synthesized female voice.

An otherworldly cultivator finds himself in the body of a young Naruto, shortly after he finishes his academy days.With only fragmented memories of this new world, he finds himself in. The cultivator will make full use of his old knowledge to not only survive but reach new heights.Everyone who tries to get in his way will soon find how ruthless this old soul can be.A.N - Please read this:- The characters In the story will be a bit older than in canon. They will start at fifteen after graduating from the academy and will be around eighteen after the Shippuden time skip.- There will be Harem. I'm not sure how big yet, but probably not very big.- There will be a lot of violence and blood, so be warned.- There will be some occasional smut scene later on in the story.- During the beginning, the story is going to follow canon events quite closely, but this will change more and more as the story progresses and Naruto's actions and decisions start to have consequences.The upload rate is currently at 6 chapters per week, I may increase it in the future if I have more time. I do not have specific days or times for the uploads because my full-time job has an erratic schedule so I upload whenever I have the time. But you can expect 6 new chapters by the end of the week. Sorry for the inconvenience, I hope my readers understand.

Qin Tian accidentally transmigrated into a sickly body, a body with broken Dantian that was unable to practice Qigong, in another world. Fortunately, God had mercy on him by giving him a level up system. Useless? That was him in the past. Not worrying about practicing Qigong, he was now able to kill Monsters to level up. Easy! Level up when killing Monsters; level up when killing people. An unbeatable sovereign of the clan in the eyes of other people, but in his eyes, he is a glittering big BOSS.

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