NTR : Next Reincarnated - Chapter 5: Ch - They Took It From Me

The former mercenary assassin Chen Tianlong has been asked to be the bodyguard and private doctor of Lin Wushuang, a pretty lady who is still a student. Their stories in the campus begin.“What's wrong, Tianlong?”“Your daughter is not sick, it's just that her Yin Qi is too heavy. The treatment for her is quite simple, find a man with abundant Yang Qi... and let him hold her while sleeping.”“This concerns Wushuang's life and death, and I definitely trust Tianlong, so let him try.”

Since childhood Gu Wuji has regularly encountered ghosts and was one day involved in an infinite world of terror, just– I treated you as an evil spirit, why do you want to hug my thigh?

- Description from Novelupdates

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

Li Yu transmigrated to a world of the cultivation and martial arts. He became the head disciple of a low-ranking sect.