From Today, I'm a Player - Chapter 268. The End of a Tragedy Pt. 4

What if an alien baby born in the midst of a major conflict on another planet was sent to Earth to save his life? Born with intelligence and the ability to create technology from any material he touches, he was found by a couple in rural Japan and raised like a normal human.Despite his powers beyond reason, living in a peaceful world forced him to restrain himself. He grew up as a young man who loved high-tech superheroes, but never had the chance to realize his dream of becoming a hero.However, everything changed when he and his classmates were suddenly transported to another world—a world of monsters, war, and chaos. Seeing the helplessness of the humans in that world, he realized that this was the chance he had been waiting for.Not with magic, swords, or ordinary physical strength—he would become a hero with technological sophistication that surpassed any civilization!This will be Ren Takamura's story!

Le Wan transmigrated into a book, becoming a sacrifice in the fight between a real rich daughter and a fake rich daughter. Being the cousin of the real rich daughter, she had a good family background and looks, as well as the affection of all other family members and her fiance. She is unquestionably the object of group pampering, treated like a princess, and born lucky… She would have been a winner if she had not sabotaged herself.

However, the problem was that her fiance was the male lead! A philandering scumbag, he would always call Le Wan ‘darling’ before the female lead showed up, stealing the cousin’s heart. However, once the female lead appeared, he started calling her ‘sister’ instead and distant himself, insisting that he was loyal to the female lead. Being lovestruck and having been pampered since birth, Le Wan’s original body could not accept being dumped for the rich daughter, who was raised in a farming village! She decided to endlessly harass the female lead, reducing herself to cannon fodder and subjecting her whole family to the same fate.

However, Le Wan was her own person, and she would rather stay pampered by her family and live with them happily ever after. Male lead? That piece of trash? He belongs in a trash can! I have no feelings for him at all! The rich daughter tried to frame her to get the family’s affection and use her as a tool? Sorry, but I don’t live in a dog-eat-dog world as you do. Bring me my popcorn. I will watch them tear each other apart! The ice-cold villain? Stroking her chin and smiling like a shrewd fox, Le Wan said: Oh, poor you… Come to me. I will pamper you lots. The villain who was receiving lots of cuddling: What happened? Who am I? Where am I?

He said coolly: “One million a month, stay with me!” She raised her eyebrows and smiled: “Pay a 30% deposit first, no credit!” Show no mercy. When the contract expired, she turned around gracefully, and when he chased after her, she found that there was already a kid the size of a kid beside her…

- Description from novelbuddy

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.