I'm a High School Boy and a Bestselling Light Novel Author, Strangled by My Female Junior and a Voice Actress - Volume 3, Chapter 1-2 - May 22, I slept on him

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

Eighteen-year-old Trinity is unlike any other werewolf in her pack. For one, there were unusual circumstances surrounding her birth, for another, she is the only pack member to never shift into a wolf form. So now she doesn't quite belong anywhere. Not quite human and not quite wolf.

“Who are you lady?”

“How rude I am the goddess of reincarnation!”

A normal young man found himself surrounded by thousands of gods who were observing him silently.

“Shit... did I die?”

“yes... I know it must be hard-”

“LET'S GO GIVE ME MY HAREM AND OP ABILITIES LET ME EXPERIENCE COCKY EGOTISTICAL PEOPLE WHO WILL CALL ME TRASH NO MATTER HOW MUCH I PROVE I'M OVERPOWERED!!!”

Dead silence... Thousands of gods were left speechless.

“ok give me my system or infinite magic or unique bloodline or whatever”

Hearing what the young man said thousands of gods burst into laughter.

“I the God of strength will give you my system”

“I the God of life will give you my system”

“I the God of archery will give you my system”

Every single god gave the young man their system/power causing a unique system to be made just for him.

[Supreme System]

The prettiest girl in the class, the campus belle queen, an attractive policewoman, a cunning reporter, a charming businesswoman, a mesmerizing commando, and a millionaire spendthrift, all shall lose themselves to passion.

Be it a Lolita, a virtuous woman, a regal queen, a mature racy woman, a cold-blooded goddess, or a sexy baby-faced doll, all beauties shall come to his embrace.

Young and inexperienced, equipped with the [Flower Pickup System], young schoolboy Su Ke, felt his life become more and more chaotic…

- Description from Novelupdates