Reincarnated as Napoleon II - Chapter 27: The Glimpse of Personal Hygiene to Everyone!

Ming Liuyi transmigrated into a novel she had read, and to make matters worse, she was placed into the body of the novel’s antagonist who shares the same name. The original Ming Liuyi, bullied into marrying a cripple, decided to abuse the rich male lead, Yao Zizhou, until he went into a vegetative state. Ming Liuyi knew she had three months of safety before Yao Zizhou woke up and took his revenge. But for some reason, she was drawn to him, and when she touched him, her spiritual energy began to stir.

No one suspected that Yao Zizhou would actually still be perfectly aware of his surroundings, though he couldn’t move. He continued his days in great confusion when his arranged wife from hell was suddenly replaced with a sweet, nice girl, who actually cared for him dutifully and spoke to him with gentle words. It aroused his curiosity, but right before he could wake and see her, she fled. Yao Zizhou huffed in annoyance. There was no way he would let her escape his clutches.

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.

Travel to the primitive world, open up wasteland and farm land, tame animals and fish, build houses…

Jiang Xuan wants to create a tribe of his own!

- Description from novelbuddy

Master said, the woman I held in my hands, I must protect for the rest of my life.