Urban System in America - Chapter 89 - 88: Tides of Fortune

This is a story of an ordinary boy gaining unusual powers from his nightmares… It all started when Lin Sheng experienced something strange on what he thought was just another normal day. He begins to have recurring dreams that lead him on an incredible journey of discovery as he encounters spine-chilling monsters and elusive secrets.

- 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.

Miss Su had lived a sheltered life focused on learning the three obediences and four virtues since she was young. Before she could marry, she was killed by the autumn rain. Reborn as a peasant girl in the 1980s, Su Danhong became a wife and also unexpectedly got a spiritual spring! She didn’t expect that her previous life’s embroidery skills were master level embroidery skills in this life? The master was not a master. Miss Su didn’t care. What she cared about was that she could use these skills to make money and not worry about clothes and food. Growing precious flowers and plants, embroidering beautiful mountains and rivers, and enjoying the simple life.This is the story of an ancient girl from a noble family who went through rebirth to the 1980s where she farmed and gave birth.

[Rebirth + Era + Space + Getting Rich + Counterattack Face-Slapping]Waking up, Su Yuanyuan found herself in a time of famine. Looking at the bird-poor environment, she felt like she could die again to escape back.But why does this thought give her a splitting headache?Want to hang herself, but the safety rope brought from her space would break on its own?Thinking of jumping into the river, and she gets pulled out just after jumping in?Alright, better to live stubbornly than to die well. She has a space, can farm, and doesn't fret over food or clothing. Heaven, the 'father', offers conveniences, making life pleasantly good!However, that handsome guy who always forces her to work, I'm only ten years old, is it really okay for you to look at me with such deep affection?