MTL - Civilization: Beyond Two Worlds - Chapter 830 Kant's rights

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.

Endless sky and infinite space, the cosmos isn’t some paradise waiting to be found, it is full of darkness and danger, death and terror of the great unknown. However, for that glittering swath of blue, we have no fear! For the longevity of men, we have no regrets! Nothing shall stand in our way because it is finally our time, our age! The age of cosmos exploration!

After choking to death on a watermelon, Rong Jiahui thought that she would enter the netherworld and be reincarnated.

But when she opened her eyes, she discovered, to her very horror, that she had returned twelve years into the past…

Looking at the beautiful and awkward “little brother” that would be conferred the title of Marshal in the future for outstanding military service, she almost let out a snort of laughter.

She firmly decided to hug the thigh of this little brother, and climb to the top of her life!

The plan was beautiful, but it had just one problem.

Why had this little brother… suddenly turned into…

A little sister…

- Description from Novelupdates

Tang Yu transmigrates into a modern urban novel as a wealthy second-generation villain. Each time he survives a segment of the plot, he earns a reward!He decides to lay low and survive until the very end! He starts by calling off an engagement to avoid getting killed by the Dragon King!However, everyone around him seems to be plotting against him, insisting on pulling him into conflict.Su Muyue: “You want to break off the engagement? No, you don't.”Father-in-law: “Who does Ye Chen think he is? My son-in-law can only be Tang Yu.”Bodyguard Captain: “Young Master Tang has been incredibly kind to me, I will kill the Dragon King for him.”No matter how much Tang Yu tries to stay out of the plot, someone always shows up to drag him back into the fray.To ensure his safety, Tang Yu has no choice but to defeat the Dragon King.