Ar'Kendrithyst - 250, 1/2

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.

I, Zhang San, am absolutely a good person!I swear by the eight generations of my ancestors!What!? My ancestral grave just exploded!?

That night, she was dragged to the Bureau of Civil Affairs. Wait, after getting the marriage certificate, the husband ran away? And his identity can’t be found? OMG, did she marry a human or a ghost?

Disheveled, she entered the entertainment industry and almost got sexually assaulted by a director due to the unspoken rule. Young Master Moh suddenly reappeared, and that director was tortured before getting cancelled.

During a shoot, she almost died since her enemy wanted to destroy her. Then, hundreds of mysterious soldiers arrived and smashed everything. The producer was exposed of corruption and his life got destroyed.

She always fights back and takes revenge, not taking the high road.

What? A woman is after her man? No tolerance! She barged into that woman’s home and whooped her ass. She said afterward, “How dare you touch my man?”

Young Master Moh had to cover his forehead; he needed to teach her how to behave like a senior officer’s woman.

“The simplification of the extreme mountain breathing method… the simplification is successful… the extreme mountain breathing method → ​​breathing!”

Chen Fei took a deep breath.

“Extreme mountain breathing method +1 experience.”

“…”

- Description from novelbuddy