Isekai de Kojiin wo Hiraitakedo, Nazeka Darehitori Sudatou to Shinai Ken (WN) - Chapter 91: Evil God’s celebration.

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- 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.

Q: How to prevent the blackening of female supporting roles?
Passerby: Crush her in terms of IQ, humiliate her in terms of force, and then correct her three views!
Chen Rong: The first choice is to get rid of the female supporting role
The second option is to kill the male protagonist
The third option… Crush the male protagonist, and then Jinwu Zangjiao!
——
Chen Rong woke up drunk, the silky feeling on her hands made her stunned for a moment, and in a split second, a pair of soft and boneless hands wrapped around her waist.
“A Rong, you are not allowed to look at others in the future, otherwise, I will be angry.”
The system is roaring: “I told you to stop her from blackening! I didn’t let you sleep with her!!!”
Chen Rong: “???”
——
1. The rich and the enemy of the country’s little rich woman × pure and moving Bai Yueguang [Completed]
2. Sword fairy with explosive combat power × contrasting cute high-cold goddess doctor [completed]
3. The traitorous minister who seeks to usurp the throne × the petite little princess [completed]
4. Slaughter the Great Demon King of the Quartet × Invincible Fighting Female Hero [Completed]
5. The cannon fodder who the way of heaven made me die and the cannon fodder that I don’t want to die x The temple wizard who is a veteran of Lolita

No matter who you become, I will protect you wherever you are closest.
●1v1 main attack mutual favor
●The author’s writing is slag
●The first time to write fast wear and lily
●I want to improve my writing!

- Description from novelbuddy