As A Cardinal, I Don't Do Overtime - Chapter 187 - Jeromes Intentions

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.

”When I tell you to proceed with Plan A, you can’t just ignore it and go with Plan B,” said the king.

Life was going well, but his wife suddenly filed for divorce, with a firm attitude.

Lu Huai’an was puzzled and even annoyed.

He supported a large family on a few acres of land, and he supported his parents in the old age, and no one could tell the difference.

Why is she so dissatisfied?

If he could do it all over again, he wouldn’t listen to the old man’s words and stay in the village, and he wouldn’t be able to make a lot of money with his back facing the loess.

The eldest daughter was getting married soon, and he was annoyed when he thought about it in the middle of the night if his son-in-law was not good.

The second daughter had to pay for a college anyway, and she couldn’t find a job after graduating from junior high school.

The youngest daughter will go abroad if she wants to, so as to save her life from going through old accounts all day long.

The important thing is that he definitely won’t marry this woman, he has to change to someone who is obedient and beautiful.

The result opened his eyes.

He went back to his wedding day.

【80s/Daily/Shuangwen】

- Description from novelbuddy

Ten years ago, mana descended upon Earth in the form of Gates that opened into other worlds. These Gates contained Magical Beasts of unfathomable strength and power that preyed upon humans and sought the destruction of everything around them.But along with the Gates, humans gained the power of Gifts—super abilities that allowed them to fight back against the monsters and take back their world.Now, the Superhumans with Gifts are tasked with defending the people and ensuring that the Gates, which open all over the world, do not bring about the end of them all....Jason Marc was just your regular seventeen-year-old high school student whose father abandoned him ten years ago. He worked two part-time jobs while also helping his mom with her diner to aid with the finances, but he could have never guessed that his entire world would change on the eve of his eighteenth birthday.Now, with more power than any one man should possess and an army at his beck and call, Jason works toward protecting those close to him while finding out the truth behind the emergence of the Gates—and preventing the end of the world.