Plague Doctor - Chapter 5: Eastern University, School of Medicine

After seeking pleasure in the nightclub and a night of romance, he discovered there’s a seed in his stomach;

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

A 29 year old civil employment exam student wakes up in a blank white room and meets a baby angel. This baby angel informs him that he died in his sleep due to heart disease like his father and grandfather. Remembering his mom and their last conversation he says that he will take on a series of life and death tests that the baby angel offers him. From this point on he must put his life on the line and fight in the stage called ‘Arena’. And Every time he clears a test he will gain abilities and weapons to increase his strength. All to clear the tests and get his life back. This is his story of his fights in the ‘Arena’.

Futayado Nanako calls herself a part time warrior, though all the places she worked at got bankrupt, now has too much time on her hands. And to that opportunity, she was invited by a very close friend of hers, a pro gamer and a live streamer, and decided to do the world’s first VRMMO with a live stream function 《WorldLive-ONLINE》. And so, a real cheat girl who has extraordinary strength (21 years old) carries a blunt weapon and rampages through the VR world, a bludgeoning refreshing story where the viewers tremble in fear !