MTL - Little Mermaid Dressed As a Scientist - Chapter 79

I accidentally changed the whole world, the resurrection of the dead, genetic variation, recovery of the qi, mountain and seas reborn, land and seas expanded and evil spirits have started to appear.

Ghosts are now commonplace. Some people now have three heads and six arms. Some people have obtained martial arts techniques and ordinary people are now just cannon fodder.

Fortunately, I have acquired an ability which can make various items mutate.

books into martial arts or cultivation manuals,

fruits into precious treasures of heaven and earth or poison that you can only imagine and…

weapons, that can split the earth or gain sentience!

- Description from Novelupdates

Zavier met Cosmic Consciousness after his death. He was satisfied with every system that Cosmic Consciousness exhibited, so he wanted all of them. Surprisingly, the Cosmic Consciousness obliged him.

Zavier was reborn in an isekai full of magic and alchemy. Now, he had many routes to upgrade. Interestingly, to coordinate these systems, Cosmic Consciousness gave him the gift of being able to duplicate himself. He could clone a finite number of himself to manipulate these systems.

Magus, Alchemist, Mesmer, Tamer, Hunter, Vampire, Werewolf, Dragonknight, Necromancer.....

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By the way, it wouldn't appear NTR or some bullshit harem of courtships. MC of course will have harem but not for cliches.

The Zhekova family's young master approached Cindy Clarke with an old phone and said, “You dropped this five years ago, and I picked it up. Do you still deny it?”

Five years ago, she was set up and got pregnant.

Cindy Clarke never imagined that the father of her son would turn out to be the Prince Charming that the entire nation loved.

She had a weak father, a scheming mother, and a sister plotting to harm her?

None of that mattered!

Adrian Zhekova said, “Whatever they want, I'll give it all to you. Let them be jealous.”

If her opponents slandered Cindy Clarke?

Adrian Zhekova said, “I'll shut down their account.”

Don't like it? Endure it!

Morgan Clarke said, “Sob, sob... Arthur Woods says I'm an illegitimate child without a dad.”

After the Woods family went bankrupt, Adrian Zhekova turned to Cindy Clarke and asked, “When are you going to make us official?”

Cindy Clarke replied, “Since I met you, it's been like having a cheat code. Everything goes my way.”

Adrian Zhekova replied, “That's right, I'm that cheat code.”

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I opened my eyes to find myself in another world. For some odd reason, I ended up as a sword. Before my eyes laid a plain full of magic beasts, and so, I launched my body and flew in search of a partner, a wielder (females only).