MTL - Dressed As a Consort In Ancient Times - Chapter 30

What happens when a scientist from a futuristic world reincarnates in a World of Magic and Knights? An awesome MC is what happens! A scientist’s goal is to explore the secrets of the universe, and this is exactly what Leylin sets out to do when he is reincarnated. Dark, cold and calculating, he makes use of all his resources as he sets off on his adventures to meet his goal. Face? Who needs that… Hmmm… that guy seems too powerful for me to take on now… I better keep a low profile for now. You want me to help you? Sure… but what benefit can I get out of it? Nothing? Bye. Hmmm… that guy looks like he might cause me problems in the future. Should I let him off for now and let him grow into someone that can threaten me….. Nahhh. *kill*-

Alternative: Leylin is transported from an advanced technological era into a medieval world— except there’s magic. Equipped with “only” his quick wits and an A.I. chip fused to his soul, he sets out to become the most powerful magus the world has ever known. In a land divided into the Light and Dark Magi, the weak can either be cattle or disposable slaves. Only the strong can determine their lives, and only they have the luxury for virtue. Yet strength is only a tool for Leylin, like any other. His goal, in the end, is his own.

Traveling through the world of pirates, Lei Luo became an outcast of the Rocks family.

He inherited the will of the D family and activated the Myriad Worlds Great Treasure System!

As long as you keep doing tasks, you can keep building treasures!

【Ding! Congratulations to the host for creating it, twelve spell pigs, with eye-catching electric eyes! 】

【Ding! Congratulations to the host for creating the Twelve Talisman Rabbit, which is extremely fast in an instant! 】

【Ding! Congratulations to the host for creating the kaleidoscope blood wheel eye, eternal level! 】

…

With each piece of treasure being built successfully.

Shields Town aboard Laylo!

Became the straw hat group, the most mysterious prop master!

Luffy: “Train in [Time Room], my fruit has awakened!”

Sauron: “I want a famous sword? Lei Luo gave me [Flowing Blade]!”

Kaido: “My animal legion was confiscated by [Poke Ball]!”

Everyone: This prop master is so terrifying!

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- Description from novelbuddy

“Push her! You can’t let her get back up!”

“That’s right! You have to straighten out that heinous b*tch!”

A goddess of war whose fearsome reputation enveloped East Asia was betrayed and killed. Then, she was reborn as Caroline Lambert, a vulnerable lady with a tarnished reputation in New York City! Despite being the daughter of an important family, her family heavily favored her stepsister, so the bullying and physical abuse were frequent. Her fiancé, who used to woo her fervently, stood before the public with her stepsister in his arms as he declared their engagement annulled, making her a joke amongst the rich and important.

Her stepsister was also cunning enough to steal her position and take away all the affection that should have been hers, and smeared her name to the point that she was condemned by everyone! And yet, when the goddess of war reincarnated as Caroline, everything became different!

Withstanding the malicious slander, she carved out a new, bloody path. Insults from her family? Attempting to steal her late mother’s estate?

Caroline issued papers announcing that they had cut all ties, and that her mother’s estate would be donated to charity! See here, she would rather donate every coin to charity than keep them for you!

They were saying that she was a piece of trash who had nothing going for her? Sorry, but she was a prodigious doctor, a mercenary, a racer, and a top hacker…

Though Caroline wanted revenge for the body’s original owner, she inadvertently picked up a sickly, beautiful man. Seeing that he did not have long to live, Caroline agreed to his proposal… Only to find that like her, he was a man with multiple identities that could leave New York shaking once revealed!

Caroline: Aren’t you supposed to die an early death? Liar!

Edwin: It’s not a lie. My wife clearly pities me!

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates