Mr. Gu, Your Replacement Bride Is A Big Shot! - Chapter 4

Ren Zhouyuan, who loves to study Chinese culture since childhood, has never imagined that his own life would one day be subverted by a foreigner.

Not only do these foreign devils not love the Chinese, but they also scoff at him, looking at his eyes like watching a fool.

After getting drunk, Ren Zhouyuan is for no reason pregnant with a ball, and actually gave birth to a child as a man. This kid is blonde; almost do not have to verify who he is from the “handwriting.”

Ren Zhouyuan does not want to make that arrogant foreigner part of his life, but after fate tied them tightly together again, he found that there was a big difference between this man and the arrogant fighting nationality he imagined.

Leonid: Honey, what does ” Jijiwai Wai*” mean?
Ren Zhouyuan: Refers to people like you
Leonid: But I’m not chirping ah …

- Description from Novelupdates

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.

my name is Vexsus but you can just call me Vex

I was a human previously like all Isekai protaganists except this time i was reborn as a monster. Join me in my adventures as i discover and explore not only my new body but also this new world i'm thrust into.

Looking at the system’s golden fingers after crossing through it, what can Susie do? Su Shi is also very desperate!

However, the next scene made him stunned.
A popular female star, suddenly confessed to him?
The sister of the relationship is like a fire, actually cooking for him?
Never look at a man’s cold and proud school flower, do you want to live in his home as a fiancee?

Did this group of girls brains? I don’t know them at all! ! !
of course not! It is because they have acquired the subsystem of Su Shi’s protagonist system, and they have a main task that they can’t think of!
– Become a girlfriend of Su Shi!

- Description from uukanshu translation