Devil's Son-in-Law - Chapter 993: Main Altar

After traveling through time and space and becoming the younger brother of Uchiha Fugaku, Uchiha Yuto felt very panicked! He was preparing to practice hard to become the God of the Ninja World and suppress everyone, but after graduating from the Ninja Academy, he suddenly discovered that he had another path to take!“Itachi, don’t be a ninja; be a prodigal son! Uncle will give you money. The more you spend, the more popular you will be.”Being a ninja can't save the Uchiha! — Uchiha YutoThe more money Uchiha Yuto makes, the stronger his abilities will become!

He approached her and announced domineeringly, “Ten million, you're mine!” Little did he know that she would smash his head and flee in panic! Five years later, for the sake of her young son, she endured humiliation and became his wife, always on guard around him, “Get out, what are you doing coming in?” His handsome face darkened, “Woman, you couldn't have forgotten that we are husband and wife, could you?”

“I don’t care about how people in this world live, whether they have enough to eat, whether they can wear warm clothes, whether they have dreams and hope. I don’t care about their likes and dislikes.”

“It’s just that if you want to go to the sky, you need a complete advanced industrial system, a set of related research institutes, the most advanced materials science laboratory, and a big government that can coordinate all departments. It needs countless people who don’t have to worry about food and clothing. Dedicating wealth for this requires millions of high-level intellectuals to contribute their minds, and tens of thousands of different supporting manufacturers supply the best parts.”

“In short, it takes a world of abundance, and a great civilization to accomplish it.”

— Ian

A world reborn from its ashes.

An era that is coming to an end.

A group of prisoners fighting for power and power in the land.

A young man staring at the sky.

Prisoners peered out of the window of fate, mostly gazing at the dirt.

Only one is looking up at the stars.

- 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.