MTL - I, The Grandson of Garp, Scared Luffy Into Tears - Chapter 57

“It's 2025. Who's gonna believe a myth or fantasy anymore? That only exists in the book or game or anime.”And that's how everybody thought before the announcement that flipped the entire world completely.Everybody race to become the new god with the system they got.So, how about the people who don't get the system?( Hey, kid. I can give you some power. Let's make a contract. )

Frost is a healer and must use her wits, modern knowledge of medicine and challenge her moral compass in order to survive this world of Eldritch entities born from emotions, folklore, fairy tales, concepts and despair. She was no more than an ordinary man who fell into an unordinary circumstance. Suddenly appearing in a place called the Nexus in a different world from Earth had left him... er... HER curious about what this newfound world is all about. A world of swords, kingdoms and dungeons? Yep. Of races that were thought to be found only in fiction? Oh yeah. Of technologies that far surpass anything seen on Earth? Huh? isn’t that a bit much? At least they’re limited. And of magic that blatantly violates the laws of physics!? Yeah... physics don’t apply here. But her curiosity ended up costing her before she had learned much of the world of Elysia, and she was betrayed by a person she was led to believe she could trust the most. Come join Frost as she tackles Eldritch entities in a strange world far from home. However, this world may be a lot more closer to home than she realizes. *** < Judgement in Progress > The ‘Blessing of the Nexus’, which she had come to call the ‘System’, displayed these words before her wilting eyes. “Judge… ment... I… I came from… Earth… Transported here… turned into… a girl… and now… I’m being… Judged…? < Decision of One Thousand Juries Pending > < Awaiting Verdict > “… If… my only… wrong… is living… then I’d rather… be wrong… to the very end!” When the black forest fused with the darkness behind her eyelids – – A message appeared.

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

Xue Xi is forced to fall in love at first sight with this dangerous man on their first meeting. With death being the only other option, she makes the first move: