MTL - There is a Fairy Tower In Baiyun’s Birth Place - ~ 【Final volume・Origin】

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.

Former bigshot, Ying Zijin, woke up one day as the lost daughter of the Ying family, who had been missing for fifteen years. The Ying family promptly adopted another child to replace her.Upon returning to the wealthy family, everyone mocked her for not being as clever, capable, sensible, and elegant as a fake heiress. Her parents considered her a stain on the family and warned her not to harbor any illusions of being a lady of the family. They said she should be grateful for being a foster daughter, or else they would send her away.Ying Zijin: “I’ll leave then. No need to see me off.”While the Ying family celebrated joyously and others waited to see the real heiress make a fool of herself, influential figures from various fields took action.The top-rated idol with the most influential fans said, “Miss Ying, just let me know if you need anything.”The heir to a global economic monopoly said, “Ying family? What’s that? Boss, should we just wipe them out?”The number one martial artist in the country asked, “Who dares to bully my master?”The genius teenage boy with an IQ of 228 said, “That’s my sister.”A man with an incredibly seductive appearance smirked lazily and casually, saying, “Sure, then call me brother-in-law.”The influential figures were confused.When the real heiress’ true identity was restored, it caused a sensation on the internet. The Ying family went crazy and knelt, crying and begging her to come back.

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

After being reborn, Bella Green is determined to punish the scum, slap faces, and sing her way to the pinnacle of life. However, she is accidentally picked up by the person she least wants to see and taken home as a cheap 'brother.'Faced with the naughty yet particularly disobedient little Demon King, Mason Bennett sternly instructs: “No fighting, no skipping class, no dating!”One day, the little Demon King shows up on television in a stunning long dress, and Mason Bennett is furious, immediately tying her up and bringing her home for an in-depth lesson!!Looking at her suitors who were beaten up and unable to take care of themselves, Bella's eye twitches, what about the promise of no fighting?Being forcibly dragged out of the classroom and carried home by a certain jealous king while attending class, what about the promise of no skipping classes?Finally coaxed and deceived into the civil affairs bureau, Bella teared up, damn it, what about the promise of no dating!!!